<?php
if(!defined('IN_INDEX'))
 {
  header('Location: ../index.php');
  exit;
 }

if(isset($_SESSION[$settings['session_prefix'].'user_id']) && isset($_SESSION[$settings['session_prefix'].'user_type']) && $_SESSION[$settings['session_prefix'].'user_type'] == 2)
{
// remove not activated user accounts:
@mysql_query("DELETE FROM ".$db_settings['userdata_table']." WHERE registered < (NOW() - INTERVAL 24 HOUR) AND activate_code != '' AND logins=0", $connid);

#$result = mysql_query("SELECT id, subject, text FROM ".$db_settings['forum_table'], $connid);
#while($data = mysql_fetch_array($result))
# {
#  mysql_query("UPDATE ".$db_settings['forum_table']." SET subject = '".mysql_real_escape_string(utf8_encode($data['subject']))."', text = '".mysql_real_escape_string(utf8_encode($data['text']))."' WHERE id=".intval($data['id']), $connid);
# }

unset($errors);
if(isset($_REQUEST['action'])) $action = $_REQUEST['action'];

if(isset($_GET['delete_page'])) $action = 'delete_page';
if(isset($_GET['edit_page'])) $action = 'edit_page';
if(isset($_POST['delete_page_submit'])) $action = 'delete_page_submit';
if(isset($_POST['edit_page_submit'])) $action = 'edit_page_submit';
if(isset($_GET['move_up_page']) || isset($_GET['move_down_page'])) $action = 'move_page';
if(isset($_GET['move_up_smiley']) || isset($_GET['move_down_smiley'])) $action = 'move_smiley';
if(isset($_GET['move_up_category']) || isset($_GET['move_down_category'])) $action = 'move_category';

if(isset($_POST['new_category']))
 {
  $new_category = trim($_POST['new_category']);
  $new_category = str_replace('"','\'',$new_category);
  $accession = intval($_POST['accession']);
  if($new_category!='')
   {
    #if(preg_match("/\"/i",$new_category) || preg_match("/</i",$new_category) || preg_match("/>/i",$new_category)) $errors[] = $lang_add['category_invalid_chars'];

    // does this category already exist?
    $result = mysql_query("SELECT category FROM ".$db_settings['category_table']." WHERE lower(category) = '".mysql_real_escape_string(my_strtolower($new_category, $lang['charset']))."'", $connid) or raise_error('database_error',mysql_error());
    if(mysql_num_rows($result)>0) $errors[] = 'category_already_exists';
    mysql_free_result($result);

    if(empty($errors))
     {
      $count_result = mysql_query("SELECT COUNT(*) FROM ".$db_settings['category_table'], $connid);
      list($category_count) = mysql_fetch_row($count_result);
      mysql_free_result($count_result);
      @mysql_query("INSERT INTO ".$db_settings['category_table']." (order_id, category, description, accession)
      VALUES (".$category_count."+1,'".mysql_real_escape_string($new_category)."','',".$accession.")", $connid) or die(mysql_error());
      header("location: index.php?mode=admin&action=categories");
      exit();
     }
    else
     {
      $smarty->assign('errors',$errors);
     }
   }
  $action='categories';
 }

if(isset($_GET['edit_user']))
 {
  $edit_user_id = intval($_GET['edit_user']);
  $result = mysql_query("SELECT user_type, user_name, user_real_name, user_email, email_contact, user_hp, user_location, signature, profile, user_view, new_posting_notification, new_user_notification, gender, birthday, activate_code, language, time_zone, time_difference, theme FROM ".$db_settings['userdata_table']." WHERE user_id = '".$edit_user_id."'", $connid) or raise_error('database_error',mysql_error());
  $field = mysql_fetch_array($result);
  mysql_free_result($result);

  if(trim($field['birthday']) == '' || $field['birthday']=='0000-00-00') $user_birthday = '';
  else
   {
    $year = my_substr($field['birthday'], 0, 4, $lang['charset']);
    $month = my_substr($field['birthday'], 5, 2, $lang['charset']);
    $day = my_substr($field['birthday'], 8, 2, $lang['charset']);
    $user_birthday = $year.'-'.$month.'-'.$day;
   }

  // timezones:
  if(function_exists('date_default_timezone_set') && $time_zones = get_timezones())
   {
    $smarty->assign('user_time_zone', htmlspecialchars($field['time_zone']));
    $smarty->assign('time_zones', $time_zones);
   }

  if($field['time_difference']<0) $time_difference_hours = ceil($field['time_difference']/60);
  else $time_difference_hours = floor($field['time_difference']/60);
  $time_difference_minutes = abs($field['time_difference']-$time_difference_hours*60);
  if($time_difference_minutes<10) $time_difference_minutes = '0'.$time_difference_minutes;
  if(intval($field['time_difference'])>0) $user_time_difference = '+'.$time_difference_hours;
  else $user_time_difference = $time_difference_hours;
  if($time_difference_minutes>0) $user_time_difference .= ':'.$time_difference_minutes;
  $smarty->assign('user_time_difference', $user_time_difference);

  $languages = get_languages(true);
  if(isset($languages) && count($languages)>1)
   {
    $smarty->assign('user_language', htmlspecialchars($field['language']));
    $smarty->assign('languages', $languages);
   }

  $themes = get_themes(true);
  if(isset($themes) && count($themes)>1)
   {
    $smarty->assign('user_theme', htmlspecialchars($field['theme']));
    $smarty->assign('themes', $themes);
   }

  $smarty->assign('edit_user_id', $edit_user_id);
  $smarty->assign('edit_user_name', htmlspecialchars($field["user_name"]));
  $smarty->assign('edit_user_type', $field["user_type"]);
  $smarty->assign('user_email',$field["user_email"]);
  $smarty->assign('email_contact',$field["email_contact"]);
  $smarty->assign('user_real_name',$field["user_real_name"]);
  $smarty->assign('user_gender', $field['gender']);
  $smarty->assign('user_birthday', $user_birthday);
  $smarty->assign('user_hp',htmlspecialchars($field["user_hp"]));
  $smarty->assign('user_location',htmlspecialchars($field["user_location"]));
  $smarty->assign('profile',htmlspecialchars($field["profile"]));
  $smarty->assign('signature',htmlspecialchars($field["signature"]));
  $smarty->assign('user_view',$field["user_view"]);
  $smarty->assign('new_posting_notification',$field["new_posting_notification"]);
  $smarty->assign('new_user_notification',$field["new_user_notification"]);
  if(trim($field['activate_code'])!='') $smarty->assign('inactive', true);

  if(file_exists('images/avatars/'.$edit_user_id.'.jpg')) $avatar['image'] = 'images/avatars/'.$edit_user_id.'.jpg';
  elseif(file_exists('images/avatars/'.$edit_user_id.'.png')) $avatar['image'] = 'images/avatars/'.$edit_user_id.'.png';
  elseif(file_exists('images/avatars/'.$edit_user_id.'.gif')) $avatar['image'] = 'images/avatars/'.$edit_user_id.'.gif';
  if(isset($avatar))
   {
    $image_info = getimagesize($avatar['image']);
    $avatar['width'] = $image_info[0];
    $avatar['height'] = $image_info[1];
    $smarty->assign('avatar', $avatar);
   }

  $action = 'edit_user';
 }

if(isset($_POST['edit_user_submit']))
 {
  // import posted data:
  $edit_user_id = intval($_POST['edit_user_id']);
  $edit_user_name = trim($_POST['edit_user_name']);
  $edit_user_type = intval($_POST['edit_user_type']);
  $user_email = trim($_POST['user_email']);
  if(isset($_POST['email_contact'])) $email_contact=1; else $email_contact=0;
  $user_real_name = trim($_POST['user_real_name']);
  $user_birthday = trim($_POST['user_birthday']);
  if(isset($_POST['user_gender'])) $gender = intval($_POST['user_gender']);
  else $gender=0;
  if($gender!=0&&$gender!=1&&$gender!=2) $gender=0;
  $user_hp = trim($_POST['user_hp']);
  $user_location = trim($_POST['user_location']);
  $profile = trim($_POST['profile']);
  $signature = trim($_POST['signature']);
  if(isset($_POST['user_view'])) $user_view = intval($_POST['user_view']);
  else $user_view = $settings['default_view'];
  $user_time_difference = trim($_POST['user_time_difference']);
  if(isset($_POST['new_posting_notification'])) $new_posting_notification = trim($_POST['new_posting_notification']); else $new_posting_notification = 0;
  if(isset($_POST['new_user_notification'])) $new_user_notification = trim($_POST['new_user_notification']); else $new_user_notification = 0;

  // time zone:
  $user_time_zone = '';
  if(isset($_POST['user_time_zone']) && $_POST['user_time_zone']!='' && function_exists('date_default_timezone_set') && $time_zones = get_timezones())
   {
    if(in_array($_POST['user_time_zone'], $time_zones)) $user_time_zone = $_POST['user_time_zone'];
   }

  // time difference:
  $time_difference = isset($_POST['user_time_difference']) ? trim($_POST['user_time_difference']) : '';
  if(isset($time_difference[0]) && $time_difference[0]=='-') $negative = true;
  $time_difference_array = explode(':',$_POST['user_time_difference']);
  $hours_difference = abs(intval($time_difference_array[0]));
  if($hours_difference<-24 || $hours_difference>24) $hours_difference = 0;
  if(isset($time_difference_array[1])) $minutes_difference = intval($time_difference_array[1]);
  if(isset($minutes_difference))
   {
    if($minutes_difference<0 || $minutes_difference>59) $minutes_difference = 0;
   }
  else
   {
    $minutes_difference = 0;
   }
  if(isset($negative))
   {
    $time_difference = 0 - ($hours_difference*60 + $minutes_difference);
   }
  else $time_difference = $hours_difference*60 + $minutes_difference;

  // language:
  $user_language = '';
  if(isset($_POST['user_language']) && trim($_POST['user_language'])!='')
   {
    $languages = get_languages();
    if(isset($languages) && count($languages)>1)
     {
      if(in_array($_POST['user_language'], $languages))
       {
        $user_language = $_POST['user_language'];
       }
     }
   }

  // theme:
  $user_theme = '';
  if(isset($_POST['user_theme']) && trim($_POST['user_theme'])!='')
   {
    $themes = get_themes();
    if(isset($themes) && count($themes)>1)
     {
      if(in_array($_POST['user_theme'], $themes))
       {
        $user_theme = $_POST['user_theme'];
       }
     }
   }

  if(file_exists('images/avatars/'.$edit_user_id.'.jpg')) $avatar['image'] = 'images/avatars/'.$edit_user_id.'.jpg';
  elseif(file_exists('images/avatars/'.$edit_user_id.'.png')) $avatar['image'] = 'images/avatars/'.$edit_user_id.'.png';
  elseif(file_exists('images/avatars/'.$edit_user_id.'.gif')) $avatar['image'] = 'images/avatars/'.$edit_user_id.'.gif';
  if(isset($avatar))
   {
    $image_info = getimagesize($avatar['image']);
    $avatar['width'] = $image_info[0];
    $avatar['height'] = $image_info[1];
    $smarty->assign('avatar', $avatar);
   }

  // old user name:
  $oun_result = @mysql_query("SELECT user_name FROM ".$db_settings['userdata_table']." WHERE user_id = ".intval($edit_user_id)." LIMIT 1", $connid) or raise_error('database_error',mysql_error());
  $oun_data = mysql_fetch_array($oun_result);
  mysql_free_result($oun_result);
  $old_user_name = $oun_data['user_name'];

  // check data:
  if($edit_user_name=='') $errors[] = 'user_name_empty';

  // does the name already exist?
  $name_result = @mysql_query("SELECT user_name FROM ".$db_settings['userdata_table']." WHERE user_id != ".intval($edit_user_id)." AND lower(user_name) = '".mysql_real_escape_string(my_strtolower($edit_user_name, $lang['charset']))."'", $connid) or raise_error('database_error',mysql_error());
  if(mysql_num_rows($name_result)>0) $errors[] = 'user_name_already_exists';
  mysql_free_result($name_result);

  /*$field = mysql_fetch_array($name_result);
  mysql_free_result($name_result);
  if($edit_user_id != $field['user_id'] && my_strtolower($field["user_name"], $lang['charset']) == my_strtolower($edit_user_name, $lang['charset'])) $errors[] = 'user_name_already_exists';
  */
  if(my_strlen($edit_user_name, $lang['charset']) > $settings['username_maxlength']) $errors[] = 'error_username_too_long';
  if(my_strlen($user_real_name, $lang['charset']) > $settings['name_maxlength']) $errors[] = 'error_name_too_long';
  if(my_strlen($user_hp, $lang['charset']) > $settings['hp_maxlength']) $errors[] = 'error_hp_too_long';
  if(my_strlen($user_location, $lang['charset']) > $settings['location_maxlength']) $errors[] = 'error_location_too_long';
  $smarty->assign('profil_length',my_strlen($profile, $lang['charset']));
  if(my_strlen($profile, $lang['charset']) > $settings['profile_maxlength']) $errors[] = 'error_profile_too_long';
  $smarty->assign('signature_length',my_strlen($signature, $lang['charset']));
  if(my_strlen($signature, $lang['charset']) > $settings['signature_maxlength']) $errors[] = 'error_signature_too_long';

  // birthday check:
  if($user_birthday!='')
   {
    if(is_valid_birthday($user_birthday))
     {
      $year = intval(my_substr($user_birthday, 0, 4, $lang['charset']));
      $month = intval(my_substr($user_birthday, 5, 2, $lang['charset']));
      $day = intval(my_substr($user_birthday, 8, 2, $lang['charset']));
      $birthday = $year.'-'.$month.'-'.$day;
     }
    else $errors[] = 'error_invalid_date';
   }
  if(empty($birthday)) $birthday = '0000-00-00';

  // check for too long words:
  $too_long_word = too_long_word($edit_user_name,$settings['name_word_maxlength']);
  if($too_long_word) $errors[] = 'error_word_too_long';

  if(empty($too_long_word))
   {
    $too_long_word = too_long_word($user_location,$settings['location_word_maxlength']);
    if($too_long_word) $errors[] = 'error_word_too_long';
   }

  $profile_check = html_format($profile);
  $profile_check = strip_tags($profile_check);
  if(empty($too_long_word))
   {
    $too_long_word = too_long_word($profile_check,$settings['text_word_maxlength']);
    if($too_long_word) $errors[] = 'error_word_too_long';
   }

  $signature_check = signature_format($signature);
  $signature_check = strip_tags($signature_check);
  if(empty($too_long_word))
   {
    $too_long_word = too_long_word($signature_check,$settings['text_word_maxlength']);
    if($too_long_word) $errors[] = 'error_word_too_long';
   }
  // end of checking

  // save if no errors:
  if(empty($errors))
   {
    @mysql_query("UPDATE ".$db_settings['userdata_table']." SET user_name='".mysql_real_escape_string($edit_user_name)."', user_type='".intval($edit_user_type)."', user_email='".mysql_real_escape_string($user_email)."', user_real_name='".mysql_real_escape_string($user_real_name)."', gender=".intval($gender).", birthday='".mysql_real_escape_string($birthday)."', email_contact=".intval($email_contact).", user_hp='".mysql_real_escape_string($user_hp)."', user_location='".mysql_real_escape_string($user_location)."', profile='".mysql_real_escape_string($profile)."', signature='".mysql_real_escape_string($signature)."', last_login=last_login, registered=registered, new_posting_notification=".intval($new_posting_notification).", new_user_notification=".intval($new_user_notification).", language='".mysql_real_escape_string($user_language)."', time_zone='".mysql_real_escape_string($user_time_zone)."', time_difference=".intval($time_difference).", theme='".mysql_real_escape_string($user_theme)."' WHERE user_id=".$edit_user_id, $connid) or raise_error('database_error',mysql_error());
    #@mysql_query("UPDATE ".$db_settings['forum_table']." SET time=time, last_reply=last_reply, edited=edited, name='".mysql_real_escape_string($edit_user_name)."' WHERE user_id=".intval($edit_user_id), $connid);
    #@mysql_query("UPDATE ".$db_settings['forum_table']." SET time=time, last_reply=last_reply, edited=edited, edited_by='".mysql_real_escape_string($edit_user_name)."' WHERE edited_by='".mysql_real_escape_string($old_user_name)."'", $connid);
    @mysql_query("DELETE FROM ".$db_settings['userdata_cache_table']." WHERE cache_id=".$edit_user_id, $connid);

    if(isset($_POST['delete_avatar']))
     {
      $uploaded_avatars_path = 'images/avatars/';
      if(file_exists($uploaded_avatars_path.$edit_user_id.'.jpg'))
       {
        @chmod($uploaded_avatars_path.$edit_user_id.'.jpg', 0777);
        @unlink($uploaded_avatars_path.$edit_user_id.'.jpg');
       }
      if(file_exists($uploaded_avatars_path.$edit_user_id.'.png'))
       {
        @chmod($uploaded_avatars_path.$edit_user_id.'.png', 0777);
        @unlink($uploaded_avatars_path.$edit_user_id.'.png');
       }
      if(file_exists($uploaded_avatars_path.$edit_user_id.'.gif'))
       {
        @chmod($uploaded_avatars_path.$edit_user_id.'.gif', 0777);
        @unlink($uploaded_avatars_path.$edit_user_id.'.gif');
       }
     }

    header("location: index.php?mode=admin&action=user");
    exit;
   }
  else
   {
    $smarty->assign('errors',$errors);
    // timezones:
    if(function_exists('date_default_timezone_set') && $time_zones = get_timezones())
     {
      $smarty->assign('time_zones', $time_zones);
      $smarty->assign('user_time_zone', htmlspecialchars($user_time_zone));
     }
    // languages:
    $languages = get_languages(true);
    if(isset($languages) && count($languages)>1)
     {
      $smarty->assign('languages', $languages);
      $smarty->assign('user_language', htmlspecialchars($user_language));
     }
    // themes:
    $themes = get_themes(true);
    if(isset($themes) && count($themes)>1)
     {
      $smarty->assign('themes', $themes);
      $smarty->assign('user_theme', htmlspecialchars($user_theme));
     }
    if(isset($too_long_word)) $smarty->assign('word',$too_long_word);
    $smarty->assign('edit_user_id', intval($_POST['edit_user_id']));
    $smarty->assign('edit_user_name', htmlspecialchars($_POST['edit_user_name']));
    $smarty->assign('edit_user_type', intval($_POST['edit_user_type']));
    $smarty->assign('user_email', htmlspecialchars($_POST['user_email']));
    $smarty->assign('email_contact', intval($email_contact));
    $smarty->assign('user_real_name', htmlspecialchars($_POST['user_real_name']));
    if(isset($_POST['user_gender'])) $smarty->assign('user_gender', intval($_POST['user_gender']));
    $smarty->assign('user_birthday', htmlspecialchars($_POST['user_birthday']));
    $smarty->assign('user_hp', htmlspecialchars($_POST['user_hp']));
    $smarty->assign('user_location', htmlspecialchars($_POST['user_location']));
    $smarty->assign('profile', htmlspecialchars($_POST['profile']));
    $smarty->assign('signature', htmlspecialchars($_POST['signature']));
    if(isset($_POST['user_view'])) $smarty->assign('user_view', intval($_POST['user_view']));
    if(isset($_POST['user_time_difference'])) $smarty->assign('user_time_difference', htmlspecialchars($_POST['user_time_difference']));
    if(isset($_POST['new_posting_notification'])) $smarty->assign('new_posting_notification', intval($_POST['new_posting_notification']));
    if(isset($_POST['new_user_notification'])) $smarty->assign('new_user_notification', intval($_POST['new_user_notification']));
    if(isset($_POST['delete_avatar'])) $smarty->assign('delete_avatar', 1);
   }
  $action = 'edit_user';
 }

if(isset($_GET['edit_category']))
 {
  $category_result = mysql_query("SELECT id, order_id, category, accession FROM ".$db_settings['category_table']." WHERE id = '".$_GET['edit_category']."' LIMIT 1", $connid);
  if(!$category_result) raise_error('database_error',mysql_error());
  $field = mysql_fetch_array($category_result);
  mysql_free_result($category_result);
  $smarty->assign('category_id',$field['id']);
  $smarty->assign('edit_category',htmlspecialchars($field['category']));
  $smarty->assign('edit_accession',$field['accession']);
  $action = "edit_category";
 }

if (isset($_GET['delete_category']))
 {
  $category_result = mysql_query("SELECT id, category FROM ".$db_settings['category_table']." WHERE id = '".intval($_GET['delete_category'])."' LIMIT 1", $connid);
  if(!$category_result) raise_error('database_error',mysql_error());
  $field = mysql_fetch_array($category_result);
  mysql_free_result($category_result);
  $smarty->assign('category_id',$field['id']);
  $smarty->assign('category_name',$field['category']);

  if (count($categories) > 1)
   {
    while(list($key, $val) = each($categories))
     {
      if($key!=$field['id']) $move_categories[$key] = $val;
     }
    $smarty->assign('move_categories',$move_categories);
   }
   $smarty->assign('categories_count',count($categories));
   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $breadcrumbs[1]['link'] = 'index.php?mode=admin&amp;action=categories';
   $breadcrumbs[1]['linkname'] = 'subnav_categories';
   $smarty->assign('breadcrumbs',$breadcrumbs);
   $smarty->assign('subnav_location','subnav_delete_category');
   $action='delete_category';
 }

if(isset($_POST['edit_category_submit']))
 {
  $id = intval($_POST['id']);
  $category = trim($_POST['category']);
  $category = str_replace('"','\'',$category);
  $accession = intval($_POST['accession']);
  // does this category already exist?
  $count_result = mysql_query("SELECT COUNT(*) FROM ".$db_settings['category_table']." WHERE category LIKE '".mysql_real_escape_string($category)."' AND id != ".$id, $connid);
  if(!$count_result) raise_error('database_error',mysql_error());
  list($category_count) = mysql_fetch_row($count_result);
  mysql_free_result($count_result);

  if($category_count > 0) { $errors[] = 'category_already_exists'; }

  if(empty($errors))
   {
    mysql_query("UPDATE ".$db_settings['category_table']." SET category='".mysql_real_escape_string($category)."', accession=".$accession." WHERE id=".$id, $connid);
    #mysql_query("UPDATE ".$db_settings['forum_table']." SET time=time, last_reply=last_reply, category='".$_POST['edit_category_conf']."' WHERE category='".$_POST['old_category']."'", $connid);
    header("location: index.php?mode=admin&action=categories");
    die();
   }
  else
   {
    $smarty->assign('category_id',intval($_POST['id']));
    $smarty->assign('edit_category',htmlspecialchars($_POST['category']));
    $smarty->assign('edit_accession',intval($_POST['accession']));
    $smarty->assign('errors',$errors);
   }

  $action='edit_category';
 }

if(isset($_POST['entries_in_not_existing_categories_submit']))
 {
  if ($_POST['entry_action'] == "delete")
   {
    if(isset($category_ids_query))
     {
      mysql_query("DELETE FROM ".$db_settings['forum_table']." WHERE category NOT IN (".$category_ids_query.")", $connid);
     }
    else
     {
      mysql_query("DELETE FROM ".$db_settings['forum_table']." WHERE category != 0", $connid);
     }
   }
  else
   {
    if(isset($category_ids_query))
     {
      mysql_query("UPDATE ".$db_settings['forum_table']." SET time=time, last_reply=last_reply, category=".intval($_POST['move_category'])." WHERE category NOT IN (".$category_ids_query.")", $connid);
     }
    else
     {
      mysql_query("UPDATE ".$db_settings['forum_table']." SET time=time, last_reply=last_reply, category=".intval($_POST['move_category'])." WHERE category != 0", $connid);
     }
   }
  header("location: index.php?mode=admin&action=categories");
  exit;
 }

if(isset($_POST['delete_category_submit']))
 {
  $category_id = intval($_POST['category_id']);
  if($category_id > 0)
   {
    // delete category from category table:
    mysql_query("DELETE FROM ".$db_settings['category_table']." WHERE id=".$category_id, $connid);

    // reset order:
    $result = mysql_query("SELECT id FROM ".$db_settings['category_table']." ORDER BY order_id ASC", $connid);
    $i=1;
    while ($data = mysql_fetch_array($result))
     {
      mysql_query("UPDATE ".$db_settings['category_table']." SET order_id=".$i." WHERE id = ".intval($data['id']), $connid);
      $i++;
     }
    mysql_free_result($result);

    // what to to with the entries of deleted category:
    if ($_POST['delete_mode'] == "complete")
     {
      mysql_query("DELETE FROM ".$db_settings['forum_table']." WHERE category = ".$category_id, $connid);
     }
    else
     {
      mysql_query("UPDATE ".$db_settings['forum_table']." SET time=time, last_reply=last_reply, category=".intval($_POST['move_category'])." WHERE category = ".$category_id, $connid);
     }
    header("location: index.php?mode=admin&action=categories");
    die();
   }
  $action = 'categories';
 }

if(isset($_GET['delete_user']))
 {
  $user_id = intval($_GET['delete_user']);
  $user_result = mysql_query("SELECT user_name FROM ".$db_settings['userdata_table']." WHERE user_id='".$user_id."' LIMIT 1", $connid);
  if(!$user_result) raise_error('database_error',mysql_error());
  $user = mysql_fetch_array($user_result);
  mysql_free_result($user_result);
  $selected_users[0]['id'] = $user_id;
  $selected_users[0]['name'] = htmlspecialchars($user["user_name"]);
  $selected_users_count = 1;
  $action = 'delete_users';
 }

if(isset($_POST['delete_selected_users']))
 {
  if (isset($_POST['selected']))
   {
    $selected = $_POST['selected'];
    $selected_users_count = count($selected);
    for($x=0; $x<$selected_users_count; $x++)
    {
     $user_result = mysql_query("SELECT user_name FROM ".$db_settings['userdata_table']." WHERE user_id='".$selected[$x]."' LIMIT 1", $connid);
     if(!$user_result) raise_error('database_error',mysql_error());
     $user = mysql_fetch_array($user_result);
     mysql_free_result($user_result);
     $selected_users[$x]['id'] = $selected[$x];
     $selected_users[$x]['name'] = htmlspecialchars($user["user_name"]);
    }
   $action = 'delete_users';
   }
  else $action = 'user';
 }

if(isset($_POST['user_delete_entries']) && isset($_POST['delete_confirmed']))
 {
  $user_delete_entries = intval($_POST['user_delete_entries']);
  $result = mysql_query("SELECT id FROM ".$db_settings['forum_table']." WHERE user_id = ".$user_delete_entries, $connid) or raise_error('database_error',mysql_error());
  while($data = mysql_fetch_array($result))
   {
    delete_posting_recursive($data['id']);
   }
  mysql_free_result($result);
  header('Location: index.php?mode=user&show_user='.$user_delete_entries);
  exit;
 }


if(isset($_GET['user_delete_all_entries']))
 {
  $user_id = intval($_GET['user_delete_all_entries']);
  $user_result = mysql_query("SELECT user_name FROM ".$db_settings['userdata_table']." WHERE user_id='".$user_id."' LIMIT 1", $connid);
  if(!$user_result) raise_error('database_error',mysql_error());
  if(mysql_num_rows($user_result)==1)
   {
    #$count_postings_result = mysql_query("SELECT COUNT(*) FROM ".$db_settings['forum_table']." WHERE user_id = ".$user_id, $connid);
    #list($user_delete_entries['number']) = mysql_fetch_row($count_postings_result);
    #mysql_free_result($count_postings_result);
    $user = mysql_fetch_array($user_result);
    mysql_free_result($user_result);
    $user_delete_entries['id'] = $user_id;
    $user_delete_entries['user'] = htmlspecialchars($user['user_name']);
    $action = 'user_delete_entries';
   }
 }

if(isset($_GET['download_backup_file']))
 {
  $file = 'backup/'.$_GET['download_backup_file'];
  if(check_filename($_GET['download_backup_file']) && file_exists($file))
   {
    $len = filesize($file);
    $fh = @fopen($file,"r");
    if(!$fh) return false;
    $data = fread($fh, $len);
    fclose($fh);
    header("Content-Type: text/plain; charset=".$lang['charset']);
    header("Content-Disposition: attachment; filename=".$_GET['download_backup_file']);
    header("Accept-Ranges: bytes");
    header("Content-Length: ".$len);
    echo $data;
    exit;
   }
  else
   {
    $errors[] = 'error_file_doesnt_exist';
    $smarty->assign('errors',$errors);
    $action = 'backup';
   }
 }

if(isset($_POST['delete_selected_backup_files']) && empty($_POST['delete_backup_files'])) $action = 'backup';

if(isset($_REQUEST['delete_backup_files']))
 {
  if(empty($_REQUEST['delete_backup_files_confirm']))
   {
    $action = 'delete_backup_files_confirm';
   }
  else
   {
    foreach($_REQUEST['delete_backup_files'] as $backup_file)
     {
      if(!@unlink('backup/'.$backup_file)) $error = true;
     }
    if(isset($error))
     {
      $errors[] = 'error_delete_backup_file';
      $smarty->assign('errors',$errors);
      $action = 'backup';
     }
    else
     {
      header('Location: index.php?mode=admin&action=backup');
      exit;
     }
   }
 }

if(isset($_GET['restore']))
 {
  $file = 'backup/'.$_GET['restore'];
  if(check_filename($_GET['restore']) && file_exists($file))
   {
    $backup_file = $_GET['restore'];
    if(ini_get('safe_mode')) $smarty->assign('safe_mode_warning',true);
    $action = 'restore';
   }
  else
   {
    $errors[] = 'error_file_doesnt_exist';
    $smarty->assign('errors',$errors);
    $action = 'backup';
   }
 }

if(isset($_REQUEST['restore_submit']))
 {
  if($_POST['backup_file']=='' || !file_exists('backup/'.$_POST['backup_file']) || !check_filename($_POST['backup_file'])) $errors[] = 'error_file_doesnt_exist';
  if(empty($errors))
   {
    if(empty($_POST['restore_password']) || $_POST['restore_password']=='') $errors[] = 'error_password_wrong';
    if(empty($errors))
     {
      $result = mysql_query("SELECT user_pw FROM ".$db_settings['userdata_table']." WHERE user_id=".intval($_SESSION[$settings['session_prefix'].'user_id'])." LIMIT 1", $connid) or raise_error('database_error',mysql_error());
      if(mysql_num_rows($result)!=1) raise_error('database_error',mysql_error());
      $data = mysql_fetch_array($result);
      if(!is_pw_correct($_POST['restore_password'],$data['user_pw'])) $errors[] = 'error_password_wrong';
      #if(md5($_POST['restore_password'])!=$data['user_pw']) $errors[] = 'error_password_wrong';
      if(empty($errors))
       {
        if(!restore_backup('backup/'.$_POST['backup_file']))
         {
          $errors[] = 'error_restore_mysql';
          $smarty->assign('mysql_error',$error_message);
         }

        if(empty($errors))
         {
          header('Location: index.php?mode=admin&action=backup&msg=restore_backup_ok');
          exit;
         }
       }
     }
   }
  if(isset($errors))
   {
    $backup_file = $_POST['backup_file'];
    $smarty->assign('errors',$errors);
    $action = 'restore';
   }
 }

if(isset($_GET['create_backup']))
 {
  $mode = intval($_GET['create_backup']);
  if(!create_backup_file($mode)) $errors[] = 'error_create_backup_file';

  if(empty($errors))
   {
    header('Location: index.php?mode=admin&action=backup&msg=backup_file_created');
    exit;
   }
  else $smarty->assign('errors',$errors);
  $action = 'backup';
 }

if(isset($_GET['run_update']))
 {
  $file = 'update/'.$_GET['run_update'];
  if(check_filename($_GET['run_update']) && file_exists($file))
   {
    $update_file = $_GET['run_update'];
    $action = 'run_update';
   }
  else
   {
    $errors[] = 'error_file_doesnt_exist';
    $smarty->assign('errors',$errors);
    $action = 'update';
   }
 }

if(isset($_POST['update_file_submit']))
 {
  if($_POST['update_file_submit']=='' || !file_exists('update/'.$_POST['update_file_submit']) || !check_filename($_POST['update_file_submit']))
   {
    $errors[] = 'error_file_doesnt_exist';
    $smarty->assign('errors',$errors);
    $action = 'update';
   }
  if(empty($errors))
   {
    if(empty($_POST['update_password']) || $_POST['update_password']=='') $errors[] = 'error_password_wrong';
    if(empty($errors))
     {
      $result = mysql_query("SELECT user_pw FROM ".$db_settings['userdata_table']." WHERE user_id=".intval($_SESSION[$settings['session_prefix'].'user_id'])." LIMIT 1", $connid) or raise_error('database_error',mysql_error());
      if(mysql_num_rows($result)!=1) raise_error('database_error',mysql_error());
      $data = mysql_fetch_array($result);
      if(!is_pw_correct($_POST['update_password'],$data['user_pw'])) $errors[] = 'error_password_wrong';
      #if(md5($_POST['update_password'])!=$data['user_pw']) $errors[] = 'error_password_wrong';
      if(empty($errors))
       {
        include('update/'.$_POST['update_file_submit']);

        $action = 'update_done';
        $breadcrumbs[0]['link'] = 'index.php?mode=admin';
        $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
        $breadcrumbs[1]['link'] = 'index.php?mode=admin&amp;action=update';
        $breadcrumbs[1]['linkname'] = 'subnav_update';
        $smarty->assign('breadcrumbs',$breadcrumbs);
        $smarty->assign('subnav_location','subnav_update_run');

        if(isset($update['errors'])) $smarty->assign('update_errors',$update['errors']);
        else
         {
          if(isset($update['items']))
           {
            $i=0;
            foreach($update['items'] as $item)
             {
              if(my_substr($item, -1, 1, $lang['charset'])=='/')
               {
                $items[$i]['type'] = 0;
                $items[$i]['name'] = my_substr($item, 0, -1, $lang['charset']);
               }
              else
               {
                $items[$i]['type'] = 1;
                $items[$i]['name'] = $item;
               }
              $i++;
             }
             $smarty->assign('update_items',$items);
           }
          if(isset($update['download_url'])) $smarty->assign('update_download_url',$update['download_url']);
          if(isset($update['message'])) $smarty->assign('update_message',$update['message']);
          if(isset($update['new_version'])) $smarty->assign('update_new_version',$update['new_version']);
         }
       }
     }

    if(isset($errors))
     {
      $update_file = $_POST['update_file_submit'];
      $smarty->assign('errors',$errors);
      $action = 'run_update';
     }
   }
 }

if(isset($_POST['clear_userdata']) && isset($_POST['logins']) && isset($_POST['days']))
 {
  $logins = intval($_POST['logins']);
  $days = intval($_POST['days']);

  $result = @mysql_query("SELECT user_id, user_name FROM ".$db_settings['userdata_table']." WHERE user_type != 1 AND user_type != 2 AND logins <= ".$logins." AND last_login<(NOW()-INTERVAL ".$days." DAY) AND registered<(NOW()-INTERVAL ".$days." DAY) ORDER BY user_name", $connid) or raise_error('database_error',mysql_error());
  $i=0;
  while($line = mysql_fetch_array($result))
   {
    $selected_users[$i]['id'] = $line['user_id'];
    $selected_users[$i]['name'] = $line['user_name'];
    $i++;
   }
   mysql_free_result($result);
   if(isset($selected_users))
    {
     $selected_users_count = count($selected_users);
     $action="delete_users";
    }
   else
    {
     $smarty->assign('no_users_in_selection',true);
     $action='clear_userdata';
    }
 }

if (isset($_POST['email_list'])) $action="email_list";

 if(isset($_POST['delete_confirmed']))
 {
  if (isset($_POST['selected_confirmed']))
   {
    $selected_confirmed = $_POST['selected_confirmed'];
    for($x=0; $x<count($selected_confirmed); $x++)
     {
      if($_SESSION[$settings['session_prefix'].'user_id']!=$selected_confirmed[$x])
       {
        // get user name:
        $delete_result = @mysql_query("SELECT user_name FROM ".$db_settings['userdata_table']." WHERE user_id = ".intval($selected_confirmed[$x])." LIMIT 1", $connid) or raise_error('database_error',mysql_error());
        if(mysql_num_rows($delete_result)==1)
         {
          unset($user_name);
          list($user_name) = @mysql_fetch_array($delete_result);

          // save user name in forum table (like unregistered users):
          @mysql_query("UPDATE ".$db_settings['forum_table']." SET time=time, last_reply=last_reply, name='".mysql_real_escape_string($user_name)."' WHERE user_id = ".intval($selected_confirmed[$x]), $connid);

          // set "edited_by" in own edited postings to 0:
          @mysql_query("UPDATE ".$db_settings['forum_table']." SET time=time, last_reply=last_reply, edited_by=0 WHERE edited_by = ".intval($selected_confirmed[$x])." AND user_id = ".intval($selected_confirmed[$x]), $connid);

          // set user_id = 0
          @mysql_query("UPDATE ".$db_settings['forum_table']." SET time=time, last_reply=last_reply, user_id=0, email_notification=0 WHERE user_id = ".intval($selected_confirmed[$x]), $connid);

          @mysql_query("DELETE FROM ".$db_settings['userdata_table']." WHERE user_id = ".intval($selected_confirmed[$x]), $connid);
          @mysql_query("DELETE FROM ".$db_settings['userdata_cache_table']." WHERE cache_id=".intval($selected_confirmed[$x]), $connid);
         }
        @mysql_free_result($delete_result);

        // delete avatar:
        $uploaded_avatars_path = 'images/avatars/';
        if(file_exists($uploaded_avatars_path.intval($selected_confirmed[$x]).'.jpg'))
         {
          @chmod($uploaded_avatars_path.intval($selected_confirmed[$x]).'.jpg', 0777);
          @unlink($uploaded_avatars_path.intval($selected_confirmed[$x]).'.jpg');
         }
        if(file_exists($uploaded_avatars_path.intval($selected_confirmed[$x]).'.png'))
         {
          @chmod($uploaded_avatars_path.intval($selected_confirmed[$x]).'.png', 0777);
          @unlink($uploaded_avatars_path.intval($selected_confirmed[$x]).'.png');
         }
        if(file_exists($uploaded_avatars_path.intval($selected_confirmed[$x]).'.gif'))
         {
          @chmod($uploaded_avatars_path.intval($selected_confirmed[$x]).'.gif', 0777);
          @unlink($uploaded_avatars_path.intval($selected_confirmed[$x]).'.gif');
         }

       }
     }
   }
  header('Location: index.php?mode=admin&action=user');
  exit;
 }

if(isset($_GET['user_lock']))
 {
  $page = intval($_GET['page']);
  if($page < 1) $page = 1;
  $order = $_GET['order'];
  if($order!='user_id' && $order!='user_name' && $order!='user_email' && $order!='user_type' && $order!='registered' && $order!='logins' && $order!='last_login' && $order!='user_lock' && $order!='activate_code') $order='user_id';
  $descasc = $_GET['descasc'];
  if($descasc!='DESC' && $descasc!='ASC') $descasc = 'ASC';
  if(isset($_GET['search_user'])) $search_user_q = '&search_user='.urlencode($_GET['search_user']);
  else $search_user_q = '';

  $lock_result = mysql_query("SELECT user_type, user_lock FROM ".$db_settings['userdata_table']." WHERE user_id = ".intval($_GET['user_lock'])." LIMIT 1", $connid) or raise_error('database_error',mysql_error());
  $field = mysql_fetch_array($lock_result);
  mysql_free_result($lock_result);

  if($field['user_type']==0)
   {
    if($field['user_lock'] == 0) $new_lock = 1; else $new_lock = 0;
    $update_result = mysql_query("UPDATE ".$db_settings['userdata_table']." SET user_lock='".$new_lock."', last_login=last_login, registered=registered WHERE user_id=".intval($_GET['user_lock'])." LIMIT 1", $connid);
   }
  header('Location: index.php?mode=admin&action=user'.$search_user_q.'&page='.$page.'&order='.$order.'&descasc='.$descasc);
  exit;
 }

if (isset($_GET['activate']))
 {
  mysql_query("UPDATE ".$db_settings['userdata_table']." SET last_login=last_login, registered=registered, activate_code='' WHERE user_id=".intval($_GET['activate'])." LIMIT 1", $connid);
  header('Location: index.php?mode=admin&edit_user='.intval($_GET['activate']));
  exit;
 }

if(isset($_POST['reset_forum_confirmed']) || isset($_POST['uninstall_forum_confirmed']))
 {
  if(empty($_POST['confirm_pw'])) $errors[] = 'error_password_wrong';

  if(empty($errors))
   {
    $pw_result = @mysql_query("SELECT user_pw FROM ".$db_settings['userdata_table']." WHERE user_id = ".intval($_SESSION[$settings['session_prefix'].'user_id'])." LIMIT 1", $connid) or raise_error('database_error',mysql_error());
    $field = mysql_fetch_array($pw_result);
    mysql_free_result($pw_result);
    if(!is_pw_correct($_POST['confirm_pw'],$field['user_pw'])) $errors[] = 'error_password_wrong';
    #if($field['user_pw'] != md5($_POST['confirm_pw'])) $errors[] = 'error_password_wrong';
   }

  if(empty($errors))
   {
    if(isset($_POST['reset_forum_confirmed']))
     {
      if(empty($_POST['delete_postings']) && empty($_POST['delete_userdata'])) $errors[] = 'error_no_selection_made';
      else
       {
        if(isset($_POST['delete_postings']))
         {
          @mysql_query("TRUNCATE TABLE ".$db_settings['forum_table'], $connid) or raise_error('database_error',mysql_error());
          @mysql_query("TRUNCATE TABLE ".$db_settings['entry_cache_table'], $connid) or raise_error('database_error',mysql_error());
         }
        if(isset($_POST['delete_userdata']))
         {
          @mysql_query("DELETE FROM ".$db_settings['userdata_table']." WHERE user_id != ".intval($_SESSION[$settings['session_prefix'].'user_id']), $connid) or raise_error('database_error',mysql_error());
          @mysql_query("TRUNCATE TABLE ".$db_settings['userdata_cache_table'], $connid) or raise_error('database_error',mysql_error());
         }
        header('Location: index.php?mode=admin');
        exit;
       }
     }
    elseif(isset($_POST['uninstall_forum_confirmed']))
     {
      echo '<pre>';
      echo 'Deleting table <strong>'.$db_settings['forum_table'].'</strong>... ';
      if(@mysql_query("DROP TABLE ".$db_settings['forum_table'], $connid)) echo '<b style="color:green;">OK</b>'; else echo '<b style="color:red;">FAILED</b> ('.mysql_error($connid).')';
      echo '<br />';
      echo 'Deleting table <strong>'.$db_settings['userdata_table'].'</strong>... ';
      if(@mysql_query("DROP TABLE ".$db_settings['userdata_table'], $connid)) echo '<b style="color:green;">OK</b>'; else echo '<b style="color:red;">FAILED</b> ('.mysql_error($connid).')';
      echo '<br />';
      echo 'Deleting table <strong>'.$db_settings['settings_table'].'</strong>... ';
      if(@mysql_query("DROP TABLE ".$db_settings['settings_table'], $connid)) echo '<b style="color:green;">OK</b>'; else echo '<b style="color:red;">FAILED</b> ('.mysql_error($connid).')';
      echo '<br />';
      echo 'Deleting table <strong>'.$db_settings['category_table'].'</strong>... ';
      if(@mysql_query("DROP TABLE ".$db_settings['category_table'], $connid)) echo '<b style="color:green;">OK</b>'; else echo '<b style="color:red;">FAILED</b> (MySQL: '.mysql_error($connid).')';
      echo '<br />';
      echo 'Deleting table <strong>'.$db_settings['pages_table'].'</strong>... ';
      if(@mysql_query("DROP TABLE ".$db_settings['pages_table'], $connid)) echo '<b style="color:green;">OK</b>'; else echo '<b style="color:red;">FAILED</b> (MySQL: '.mysql_error($connid).')';
      echo '<br />';
      echo 'Deleting table <strong>'.$db_settings['smilies_table'].'</strong>... ';
      if(@mysql_query("DROP TABLE ".$db_settings['smilies_table'], $connid)) echo '<b style="color:green;">OK</b>'; else echo '<b style="color:red;">FAILED</b> (MySQL: '.mysql_error($connid).')';
      echo '<br />';
      echo 'Deleting table <strong>'.$db_settings['banlists_table'].'</strong>... ';
      if(@mysql_query("DROP TABLE ".$db_settings['banlists_table'], $connid)) echo '<b style="color:green;">OK</b>'; else echo '<b style="color:red;">FAILED</b> (MySQL: '.mysql_error($connid).')';
      echo '<br />';
      echo 'Deleting table <strong>'.$db_settings['useronline_table'].'</strong>... ';
      if(@mysql_query("DROP TABLE ".$db_settings['useronline_table'], $connid)) echo '<b style="color:green;">OK</b>'; else echo '<b style="color:red;">FAILED</b> ('.mysql_error($connid).')';
      echo '<br />';
      echo 'Deleting table <strong>'.$db_settings['login_control_table'].'</strong>... ';
      if(@mysql_query("DROP TABLE ".$db_settings['login_control_table'], $connid)) echo '<b style="color:green;">OK</b>'; else echo '<b style="color:red;">FAILED</b> ('.mysql_error($connid).')';
      echo '<br />';
      echo 'Deleting table <strong>'.$db_settings['entry_cache_table'].'</strong>... ';
      if(@mysql_query("DROP TABLE ".$db_settings['entry_cache_table'], $connid)) echo '<b style="color:green;">OK</b>'; else echo '<b style="color:red;">FAILED</b> ('.mysql_error($connid).')';
      echo '<br />';
      echo 'Deleting table <strong>'.$db_settings['userdata_cache_table'].'</strong>... ';
      if(@mysql_query("DROP TABLE ".$db_settings['userdata_cache_table'], $connid)) echo '<b style="color:green;">OK</b>'; else echo '<b style="color:red;">FAILED</b> ('.mysql_error($connid).')';

      echo '</pre>';
      exit;
     }
   }

  if(isset($errors))
   {
    $smarty->assign('errors',$errors);
    $action = 'reset_uninstall';
   }
 }

if(isset($_POST['settings_submit']))
 {
  // not checked checkboxes:
  if(empty($_POST['show_if_edited'])) $_POST['show_if_edited'] = 0;
  if(empty($_POST['dont_reg_edit_by_admin'])) $_POST['dont_reg_edit_by_admin'] = 0;
  if(empty($_POST['dont_reg_edit_by_mod'])) $_POST['dont_reg_edit_by_mod'] = 0;
  if(empty($_POST['smilies'])) $_POST['smilies'] = 0;
  if(empty($_POST['bbcode'])) $_POST['bbcode'] = 0;
  if(empty($_POST['bbcode_img'])) $_POST['bbcode_img'] = 0;
  if(empty($_POST['bbcode_flash'])) $_POST['bbcode_flash'] = 0;
  if(empty($_POST['tag_cloud'])) $_POST['tag_cloud'] = 0;
  if(empty($_POST['avatars'])) $_POST['avatars'] = 0;
  if(empty($_POST['autolink'])) $_POST['autolink'] = 0;
  if(empty($_POST['count_views'])) $_POST['count_views'] = 0;
  if(empty($_POST['count_users_online'])) $_POST['count_users_online'] = 0;
  if(empty($_POST['rss_feed'])) $_POST['rss_feed'] = 0;
  if(empty($_POST['terms_of_use_agreement'])) $_POST['terms_of_use_agreement'] = 0;
  if(empty($_POST['forum_enabled'])) $_POST['forum_enabled'] = 0;
  if(empty($_POST['user_edit_if_no_replies'])) $_POST['user_edit_if_no_replies'] = 0;
  if(empty($_POST['time_zone'])) $_POST['time_zone'] = '';
  $_POST['last_changes'] = TIMESTAMP;

  while(list($key, $val) = each($settings))
   {
    if(isset($_POST[$key])) mysql_query("UPDATE ".$db_settings['settings_table']." SET value='".mysql_real_escape_string($_POST[$key])."' WHERE name='".mysql_real_escape_string($key)."' LIMIT 1", $connid);
   }
  if(isset($_POST['clear_cache']))
   {
    mysql_query("TRUNCATE TABLE ".$db_settings['entry_cache_table'], $connid);
    mysql_query("TRUNCATE TABLE ".$db_settings['userdata_cache_table'], $connid);
   }
  if($settings['autologin']==1 && isset($_POST['autologin']) && $_POST['autologin']==0)
   {
    mysql_query("UPDATE ".$db_settings['userdata_table']." SET auto_login_code=''", $connid);
   }

  header("Location: index.php?mode=admin&action=settings&saved=true");
  exit;
 }

if(isset($_POST['register_submit']))
 {
  $ar_username = $_POST['ar_username'];
  $ar_email = $_POST['ar_email'];
  $ar_pw = $_POST['ar_pw'];
  $ar_pw_conf = $_POST['ar_pw_conf'];
  if(isset($_POST['ar_send_userdata']) && $_POST['ar_send_userdata'] != '') $ar_send_userdata = true;
  $ar_username = trim($ar_username);
  $ar_email = trim($ar_email);
  $ar_pw = trim($ar_pw);
  $ar_pw_conf = trim($ar_pw_conf);
  // look if form complete
  if($ar_username=='' or $ar_email=='') $errors[] = 'error_form_uncomplete';

  if(empty($errors))
   {
    // look if name already exists:
    $name_result = mysql_query("SELECT user_name FROM ".$db_settings['userdata_table']." WHERE lower(user_name) = '".mysql_real_escape_string(my_strtolower($ar_username, $lang['charset']))."'", $connid) or raise_error('database_error',mysql_error());
    if(mysql_num_rows($name_result)>0) $errors[] = 'user_name_already_exists';
    mysql_free_result($name_result);

    if(!is_valid_email($ar_email)) $errors[] = 'error_email_wrong';

    if(($ar_pw=="" or $ar_pw_conf=="") && !isset($ar_send_userdata)) $errors[] = 'error_send_userdata';

    if(my_strlen($ar_username, $lang['charset']) > $settings['name_maxlength'])
    $errors[] = $lang['name_marking'] . " " .$lang['error_input_too_long'];

    $too_long_word = too_long_word($ar_username,$settings['name_word_maxlength']);
    if($too_long_word) $errors[] = 'error_word_too_long';

    if($ar_pw_conf != $ar_pw) $errors[] = 'error_pw_conf_wrong';
   }
  // save user if no errors:
  if (empty($errors))
   {
    // generate password if not specified:
    if($ar_pw=='')
     {
      if($settings['min_pw_length']<8) $pwl = 8;
      else $pwl = $settings['min_pw_length'];
      $ar_pw = random_string($pwl);
     }
    $pw_hash = generate_pw_hash($ar_pw);
    mysql_query("INSERT INTO ".$db_settings['userdata_table']." (user_type, user_name, user_real_name, user_pw, user_email, user_hp, user_location, email_contact, last_login, last_logout, user_ip, registered, user_view, fold_threads, signature, profile, auto_login_code, pwf_code, activate_code, entries_read) VALUES (0,'".mysql_real_escape_string($ar_username)."', '', '".mysql_real_escape_string($pw_hash)."','".mysql_real_escape_string($ar_email)."', '', '', ".$settings['default_email_contact'].", '0000-00-00 00:00:00', NOW(),'".$_SERVER["REMOTE_ADDR"]."',NOW(),".intval($settings['default_view']).",".intval($settings['fold_threads']).",'','','','','','')", $connid) or die(mysql_error()); //raise_error('database_error',mysql_error());

    // send userdata:
    $send_error='';
    if(isset($ar_send_userdata))
     {
      // load e-mail strings from language file:
      $smarty->configLoad($settings['language_file'], 'emails');
      $lang = $smarty->getConfigVars();
      #if($language_file != $settings['language_file']) setlocale(LC_ALL, $lang['locale']);
      $lang['admin_reg_user_email_text'] = str_replace("[name]", $ar_username, $lang['admin_reg_user_email_text']);
      $lang['admin_reg_user_email_text'] = str_replace("[password]", $ar_pw, $lang['admin_reg_user_email_text']);
      $lang['admin_reg_user_email_text'] = str_replace("[login_link]", $settings['forum_address']."index.php?mode=login&username=".urlencode($ar_username)."&userpw=".$ar_pw, $lang['admin_reg_user_email_text']);
      if(!my_mail($ar_email, $lang['admin_reg_user_email_subj'], $lang['admin_reg_user_email_text'])) $send_error = '&send_error=true';
     }
    header("location: index.php?mode=admin&action=user&new_user=".urlencode($ar_username).$send_error);
    exit;
   }
  else
   {
    $smarty->assign('errors',$errors);
    $smarty->assign('ar_username',$ar_username);
    $smarty->assign('ar_email',$ar_email);
    $action = 'register';
   }
  }

if(isset($_POST['spam_protection_submit'])) $action = 'spam_protection_submit';

if(isset($_POST['add_smiley']))
 {
  if(!file_exists('images/smilies/'.$_POST['add_smiley'])) $errors[] = 'smiley_file_doesnt_exist';
  if(trim($_POST['smiley_code'])=='') $errors[] = 'smiley_code_empty';

  if(empty($errors))
   {
    $count_result = mysql_query("SELECT COUNT(*) FROM ".$db_settings['smilies_table'], $connid);
    list($smilies_count) = mysql_fetch_row($count_result);
    mysql_free_result($count_result);
    $order_id = $smilies_count+1;

    mysql_query("INSERT INTO ".$db_settings['smilies_table']." (order_id, file, code_1, code_2, code_3, code_4, code_5, title) VALUES (".mysql_real_escape_string($order_id).",'".mysql_real_escape_string($_POST['add_smiley'])."','".mysql_real_escape_string(trim($_POST['smiley_code']))."','','','','','')", $connid);

    header("location: index.php?mode=admin&action=smilies");
    exit;
   }
  else
   {
    $smarty->assign('errors',$errors);
    $action='smilies';
   }
 }

if(isset($_GET['delete_smiley']))
 {
  mysql_query("DELETE FROM ".$db_settings['smilies_table']." WHERE id = ".intval($_GET['delete_smiley']), $connid);

  $result = mysql_query("SELECT id FROM ".$db_settings['smilies_table']." ORDER BY order_id ASC", $connid);
  $i=1;
  while ($data = mysql_fetch_array($result))
   {
    mysql_query("UPDATE ".$db_settings['smilies_table']." SET order_id=".$i." WHERE id = ".intval($data['id']), $connid);
    $i++;
   }
  mysql_free_result($result);

  header("location: index.php?mode=admin&action=smilies");
  die();
 }

if(isset($_GET['edit_smiley']))
 {
  $result = mysql_query("SELECT id, file, code_1, code_2, code_3, code_4, code_5, title FROM ".$db_settings['smilies_table']." WHERE id = ".intval($_GET['edit_smiley'])." LIMIT 1", $connid);
  if(!$result) raise_error('database_error',mysql_error());
  $data = mysql_fetch_array($result);
  mysql_free_result($result);
  $id = intval($data['id']);
  $file = $data['file'];
  $code_1 = $data['code_1'];
  $code_2 = $data['code_2'];
  $code_3 = $data['code_3'];
  $code_4 = $data['code_4'];
  $code_5 = $data['code_5'];
  $title = $data['title'];
  $action='edit_smiley';
 }

if(isset($_POST['edit_smiley_submit']))
 {
  $id = intval($_POST['id']);
  $file = trim($_POST['file']);
  $code_1 = trim($_POST['code_1']);
  $code_2 = trim($_POST['code_2']);
  $code_3 = trim($_POST['code_3']);
  $code_4 = trim($_POST['code_4']);
  $code_5 = trim($_POST['code_5']);
  $title = trim($_POST['title']);

  if(!file_exists('images/smilies/'.$file)) $errors[] = 'smiley_file_doesnt_exist';
  if($code_1=='' && $code_2=='' && $code_3=='' && $code_4=='' && $code_5=='') $errors[] = 'smiley_code_empty';
  if(empty($errors))
   {
    mysql_query("UPDATE ".$db_settings['smilies_table']." SET file='".mysql_real_escape_string($file)."', code_1='".mysql_real_escape_string($code_1)."', code_2='".mysql_real_escape_string($code_2)."', code_3='".mysql_real_escape_string($code_3)."', code_4='".mysql_real_escape_string($code_4)."', code_5='".mysql_real_escape_string($code_5)."', title='".mysql_real_escape_string($title)."' WHERE id=".$id, $connid);
    header("location: index.php?mode=admin&action=smilies");
    exit;
   }
  else
   {
    $smarty->assign('errors',$errors);
    $action='edit_smiley';
   }
 }

if(isset($_GET['enable_smilies']))
 {
  mysql_query("UPDATE ".$db_settings['settings_table']." SET value=1 WHERE name='smilies'", $connid);
  header("location: index.php?mode=admin&action=smilies");
  die();
 }

if(isset($_GET['disable_smilies']))
 {
  mysql_query("UPDATE ".$db_settings['settings_table']." SET value=0 WHERE name='smilies'", $connid);
  header("location: index.php?mode=admin&action=smilies");
  die();
 }

if(empty($action)) $action='main';
$smarty->assign('action',$action);

// check if graphical captcha is available:
if($action == 'spam_protection' || $action == 'spam_protection_submit')
 {
  // is a font available for the graphical CAPTCHA?
  $handle=opendir('modules/captcha/fonts/');
  while($file = readdir($handle))
   {
    if(preg_match('/\.ttf$/i', $file))
     {
      $font_available = true;
      break;
     }
   }
  closedir($handle);
  if(isset($font_available)) $smarty->assign('font_available',true);
  // gd lib available for graphical CAPTCHA?
  if(extension_loaded('gd')) $smarty->assign('graphical_captcha_available',true);
 }

switch($action)
 {
  case "main":
   $smarty->assign('subnav_location','subnav_admin_area');
  break;
  case "categories":
   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $smarty->assign('breadcrumbs',$breadcrumbs);
   $smarty->assign('subnav_location','subnav_categories');

  // look if there are entries in not existing categories:
  if(isset($category_ids_query))
   {
    $count_result=mysql_query("SELECT COUNT(*) FROM ".$db_settings['forum_table']." WHERE category NOT IN (".$category_ids_query.")", $connid);
   }
  else
   {
    $count_result=mysql_query("SELECT COUNT(*) FROM ".$db_settings['forum_table']." WHERE category != 0", $connid);
   }
  list($entries_in_not_existing_categories) = mysql_fetch_row($count_result);
  mysql_free_result($count_result);
  $smarty->assign('entries_in_not_existing_categories',$entries_in_not_existing_categories);

  $count_result = mysql_query("SELECT COUNT(*) FROM ".$db_settings['category_table'], $connid);
  list($categories_count) = mysql_fetch_row($count_result);
  mysql_free_result($count_result);
  $smarty->assign('categories_count',$categories_count);

  if(isset($errors)) $smarty->assign('errors',$errors);

  if($categories_count > 0)
   {
    $result = mysql_query("SELECT id, order_id, category, accession FROM ".$db_settings['category_table']." ORDER BY order_id ASC", $connid);
    if(!$result) raise_error('database_error',mysql_error());

    $i=0;
    while ($line = mysql_fetch_array($result))
     {
      $count_result = mysql_query("SELECT COUNT(*) FROM ".$db_settings['forum_table']." WHERE category = '".intval($line['id'])."' AND pid = 0", $connid);
      list($threads_in_category) = mysql_fetch_row($count_result);
      mysql_free_result($count_result);
      $count_result = mysql_query("SELECT COUNT(*) FROM ".$db_settings['forum_table']." WHERE category = '".intval($line['id'])."'", $connid);
      list($postings_in_category) = mysql_fetch_row($count_result);
      mysql_free_result($count_result);
      $categories_list[$i]['id'] = $line['id'];
      $categories_list[$i]['name'] = htmlspecialchars($line['category']);
      $categories_list[$i]['accession'] = $line['accession'];
      $categories_list[$i]['threads_in_category'] = $threads_in_category;
      $categories_list[$i]['postings_in_category'] = $postings_in_category;
      $i++;
     }
    $smarty->assign('categories_list',$categories_list);
    mysql_free_result($result);
   }
  break;
  case 'user':
   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $smarty->assign('breadcrumbs',$breadcrumbs);
   $smarty->assign('subnav_location','subnav_user');

   if(isset($_GET['new_user'])) $smarty->assign('new_user',htmlspecialchars(urldecode($_GET['new_user'])));
   if(isset($_GET['send_error'])) $smarty->assign('send_error',TRUE);

   if(isset($_GET['order'])) $order = $_GET['order']; else $order="user_name";
   if($order!='user_id' && $order!='user_name' && $order!='user_email' && $order!='user_type' && $order!='registered' && $order!='logins' && $order!='last_login' && $order!='user_lock' && $order!='activate_code') $order='user_id';
   if(isset($_GET['descasc'])) $descasc = $_GET['descasc']; else $descasc = "ASC";
   if($descasc!='DESC' && $descasc!='ASC') $descasc = 'ASC';

   if (isset($_GET['page'])) $page = intval($_GET['page']); else $page = 1;
   if (empty($category)) $category="all";

   if(isset($_GET['search_user']) && trim($_GET['search_user'])!='') $search_user = trim($_GET['search_user']);

   // count users and pages:
   if(isset($search_user))
    {
     $user_count_result = @mysql_query("SELECT COUNT(*) FROM ".$db_settings['userdata_table']." WHERE concat(lower(user_name),lower(user_email)) LIKE '%".mysql_real_escape_string(my_strtolower($search_user, $lang['charset']))."%'", $connid);
    }
   else
    {
     $user_count_result = @mysql_query("SELECT COUNT(*) FROM ".$db_settings['userdata_table'], $connid);
    }
   list($total_users) = mysql_fetch_row($user_count_result);
   mysql_free_result($user_count_result);
   $total_pages = ceil($total_users / $settings['users_per_page']);
   if($page > $total_pages) $page = $total_pages;
   if($page < 1) $page = 1;
   $ul = ($page-1) * $settings['users_per_page'];

   if(isset($search_user))
    {
     #$result = @mysql_query("SELECT user_id, user_name, user_type, user_email, logins, UNIX_TIMESTAMP(last_login + INTERVAL ".$time_difference." MINUTE) AS last_login_time, UNIX_TIMESTAMP(registered + INTERVAL ".$time_difference." MINUTE) AS registered_time, user_lock, activate_code FROM ".$db_settings['userdata_table']." WHERE lower(user_name) LIKE '".mysql_real_escape_string(my_strtolower($search_user, $lang['charset']))."%' OR user_email LIKE '".mysql_real_escape_string(my_strtolower($search_user, $lang['charset']))."%' ORDER BY ".$order." ".$descasc." LIMIT ".$ul.", ".$settings['users_per_page'], $connid);
     $result = @mysql_query("SELECT user_id, user_name, user_type, user_email, logins, UNIX_TIMESTAMP(last_login + INTERVAL ".$time_difference." MINUTE) AS last_login_time, UNIX_TIMESTAMP(registered + INTERVAL ".$time_difference." MINUTE) AS registered_time, user_lock, activate_code FROM ".$db_settings['userdata_table']." WHERE concat(lower(user_name),lower(user_email)) LIKE '%".mysql_real_escape_string(my_strtolower($search_user, $lang['charset']))."%' ORDER BY ".$order." ".$descasc." LIMIT ".$ul.", ".$settings['users_per_page'], $connid);
    }
   else
    {
     $result = @mysql_query("SELECT user_id, user_name, user_type, user_email, logins, UNIX_TIMESTAMP(last_login + INTERVAL ".$time_difference." MINUTE) AS last_login_time, UNIX_TIMESTAMP(registered + INTERVAL ".$time_difference." MINUTE) AS registered_time, user_lock, activate_code FROM ".$db_settings['userdata_table']." ORDER BY ".$order." ".$descasc." LIMIT ".$ul.", ".$settings['users_per_page'], $connid);
    }
   $result_count = mysql_num_rows($result);

   if(isset($_GET['letter']) && $_GET['letter']!="") $su_result = mysql_query("SELECT COUNT(*) FROM ".$db_settings['userdata_table']." WHERE user_name LIKE '".$_GET['letter']."%'", $connid);
   else $su_result = mysql_query("SELECT COUNT(*) FROM ".$db_settings['userdata_table'], $connid);
   list($sel_user_count) = mysql_fetch_row($su_result);
   mysql_free_result($su_result);

   #if(isset($letter) && $letter == "A") $la = ' selected="selected"'; else $la = ''; if (isset($letter) && $letter == "B") $lb = ' selected="selected"'; else $lb = ''; if (isset($letter) && $letter == "C") $lc = ' selected="selected"'; else $lc = ''; if (isset($letter) && $letter == "D") $ld = ' selected="selected"'; else $ld = ''; if (isset($letter) && $letter == "E") $le = ' selected="selected"'; else $le = ''; if (isset($letter) && $letter == "F") $lf = ' selected="selected"'; else $lf = ''; if (isset($letter) && $letter == "G") $lg = ' selected="selected"'; else $lg = ''; if (isset($letter) && $letter == "H") $lh = ' selected="selected"'; else $lh = ''; if (isset($letter) && $letter == "I") $li = ' selected="selected"'; else $li = ''; if (isset($letter) && $letter == "J") $lj = ' selected="selected"'; else $lj = '';   if (isset($letter) && $letter == "K") $lk = ' selected="selected"'; else $lk = ''; if (isset($letter) && $letter == "L") $ll = ' selected="selected"'; else $ll = ''; if (isset($letter) && $letter == "M") $lm = ' selected="selected"'; else $lm = ''; if (isset($letter) && $letter == "N") $ln = ' selected="selected"'; else $ln = ''; if (isset($letter) && $letter == "O") $lo = ' selected="selected"'; else $lo = ''; if (isset($letter) && $letter == "P") $lp = ' selected="selected"'; else $lp = ''; if (isset($letter) && $letter == "Q") $lq = ' selected="selected"'; else $lq = ''; if (isset($letter) && $letter == "R") $lr = ' selected="selected"'; else $lr = ''; if (isset($letter) && $letter == "S") $ls = ' selected="selected"'; else $ls = ''; if (isset($letter) && $letter == "T") $lt = ' selected="selected"'; else $lt = ''; if (isset($letter) && $letter == "U") $lu = ' selected="selected"'; else $lu = ''; if (isset($letter) && $letter == "V") $lv = ' selected="selected"'; else $lv = ''; if (isset($letter) && $letter == "W") $lw = ' selected="selected"'; else $lw = ''; if (isset($letter) && $letter == "X") $lx = ' selected="selected"'; else $lx = ''; if (isset($letter) && $letter == "Y") $ly = ' selected="selected"'; else $ly = ''; if (isset($letter) && $letter == "Z") $lz = ' selected="selected"'; else $lz = '';

   $smarty->assign('order',$order);
   $smarty->assign('descasc',$descasc);
   $smarty->assign('ul',$ul);
   $smarty->assign('total_users',$total_users);
   $smarty->assign('page',$page);

   if(isset($search_user))
    {
     $smarty->assign('search_user',htmlspecialchars($search_user));
     $smarty->assign('search_user_encoded',urlencode($search_user));
    }

     // data for browse navigation:
     $user_page_browse['page'] = $page;
     $user_page_browse['total_items'] = $total_users;
     $user_page_browse['items_per_page'] = $settings['users_per_page'];
     $user_page_browse['browse_array'][] = 1;
     if($page > 5) $user_page_browse['browse_array'][] = 0;
     for($browse=$page-3; $browse<$page+4; $browse++)
      {
       if ($browse > 1 && $browse < $total_pages) $user_page_browse['browse_array'][] = $browse;
      }
     if($page < $total_pages-4) $user_page_browse['browse_array'][] = 0;
     if($total_pages > 1) $user_page_browse['browse_array'][] = $total_pages;
     if($page < $total_pages) $user_page_browse['next_page'] = $page + 1; else $user_page_browse['next_page'] = 0;
     if($page > 1) $user_page_browse['previous_page'] = $page - 1; else $user_page_browse['previous_page'] = 0;
     $smarty->assign('user_page_browse',$user_page_browse);
     $smarty->assign('pagination', pagination($total_pages,$page,3));

   $i=0;
   while($row = mysql_fetch_array($result))
    {
     $userdata[$i]['user_id'] = $row['user_id'];
     $userdata[$i]['user_name'] = htmlspecialchars($row['user_name']);
     $userdata[$i]['user_email'] = htmlspecialchars($row['user_email']);
     $userdata[$i]['user_type'] = $row['user_type'];
     $userdata[$i]['registered_time'] = $row['registered_time'];
     $userdata[$i]['logins'] = $row['logins'];
     $userdata[$i]['last_login_time'] = $row['last_login_time'];
     $userdata[$i]['user_lock'] = $row['user_lock'];
     if($row['activate_code']!='') $userdata[$i]['inactive'] = true;
     $i++;
    }
   mysql_free_result($result);
   $smarty->assign('result_count',$result_count);
   if(isset($userdata)) $smarty->assign('userdata',$userdata);

  break;
  case 'register':
   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $breadcrumbs[1]['link'] = 'index.php?mode=admin&amp;action=user';
   $breadcrumbs[1]['linkname'] = 'subnav_user';
   $smarty->assign('breadcrumbs',$breadcrumbs);
   $smarty->assign('subnav_location','subnav_register_user');
  break;
  case 'settings':
   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $smarty->assign('breadcrumbs',$breadcrumbs);
   $smarty->assign('subnav_location','subnav_settings');
   if(isset($_GET['saved'])) $smarty->assign('saved',true);

   $languages = get_languages(true);
   if(isset($languages) && count($languages)>1)
    {
     $smarty->assign('languages', $languages);
    }

   $themes = get_themes(true);
   if(isset($themes) && count($themes)>1)
    {
     $smarty->assign('themes', $themes);
    }

   if(isset($settings['time_difference'])) $std = $settings['time_difference']; else $std = 0;

   // time zones:
   if(function_exists('date_default_timezone_set') && $time_zones = get_timezones())
    {
     $smarty->assign('time_zones', $time_zones);
    }
  break;
  case "advanced_settings":
   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $breadcrumbs[1]['link'] = 'index.php?mode=admin&amp;action=settings';
   $breadcrumbs[1]['linkname'] = 'subnav_settings';
   $smarty->assign('breadcrumbs',$breadcrumbs);
   $smarty->assign('subnav_location','subnav_advanced_settings');

   $settings_sorted = $settings;
   ksort($settings_sorted);

   $i=0;
   while(list($key, $val) = each($settings_sorted))
    {
     $settings_sorted_array[$i]['key'] = $key;
     $settings_sorted_array[$i]['val'] = $val;
     $i++;
    }
   $smarty->assign('settings_sorted',$settings_sorted_array);
  break;
  case "delete_users":
   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $breadcrumbs[1]['link'] = 'index.php?mode=admin&amp;action=user';
   $breadcrumbs[1]['linkname'] = 'subnav_user';
   $smarty->assign('breadcrumbs',$breadcrumbs);
   $smarty->assign('subnav_location','subnav_delete_users');
   $smarty->assign('selected_users',$selected_users);
   $smarty->assign('selected_users_count',$selected_users_count);
  break;
  case "user_delete_entries":
   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $breadcrumbs[1]['link'] = 'index.php?mode=admin&amp;action=user';
   $breadcrumbs[1]['linkname'] = 'subnav_user';
   $smarty->assign('breadcrumbs', $breadcrumbs);
   $smarty->assign('subnav_location', 'subnav_delete_entries_user');
   $smarty->assign('user_delete_entries', $user_delete_entries);
  break;
  case "delete_category":
  break;
  case "edit_category":
   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $breadcrumbs[1]['link'] = 'index.php?mode=admin&amp;action=categories';
   $breadcrumbs[1]['linkname'] = 'subnav_categories';
   $smarty->assign('breadcrumbs',$breadcrumbs);
   $smarty->assign('subnav_location','subnav_edit_category');
  break;
  case "backup":
   if(isset($_GET['msg']))
    {
     switch($_GET['msg'])
      {
       case 'backup_file_created': $smarty->assign('message','backup_file_created'); break;
       case 'restore_backup_ok': $smarty->assign('message','restore_backup_ok'); break;
      }
    }
   $fp=opendir('backup/');
   #$i=0;
   while ($file = readdir($fp))
    {
     if(preg_match('/\.sql$/i', $file))
      {
       $files[$file] = filemtime('backup/'.$file);
      }
    }
   closedir($fp);

   if(isset($files))
    {
     arsort($files); // order by date
     #ksort($files); // order by filename
     $i=0;
     while(list($key, $val) = each($files))
      {
       $backup_files[$i]['file'] = htmlspecialchars($key);
       $backup_files[$i]['date'] = $val;
       $backup_files[$i]['size'] = number_format(filesize('backup/'.$key)/1048576,2) . ' MB';
       $i++;
      }
     $smarty->assign('backup_files',$backup_files);
    }

   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $smarty->assign('breadcrumbs',$breadcrumbs);
   $smarty->assign('subnav_location','subnav_backup');
  break;
  case 'delete_backup_files_confirm':
   $smarty->assign('delete_backup_files',$_REQUEST['delete_backup_files']);
   $smarty->assign('file_number',count($_REQUEST['delete_backup_files']));
   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $breadcrumbs[1]['link'] = 'index.php?mode=admin&amp;action=backup';
   $breadcrumbs[1]['linkname'] = 'subnav_backup';
   $smarty->assign('breadcrumbs',$breadcrumbs);
   $smarty->assign('subnav_location','subnav_delete_backup_file');
  break;
  case 'restore':
   $smarty->assign('backup_file',$backup_file);
   $smarty->assign('backup_file_date',filemtime('backup/'.$backup_file));

   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $breadcrumbs[1]['link'] = 'index.php?mode=admin&amp;action=backup';
   $breadcrumbs[1]['linkname'] = 'subnav_backup';
   $smarty->assign('breadcrumbs',$breadcrumbs);
   $smarty->assign('subnav_location','subnav_restore');
  break;
  case 'update':
   if($fp=@opendir('update/'))
    {
     $i=0;
     while ($file = readdir($fp))
      {
       if(preg_match('/\.php$/i', $file))
        {
         $update_files[$i]['filename'] = htmlspecialchars($file);
         $i++;
        }
      }
     closedir($fp);
    }

   if(isset($update_files)) $smarty->assign('update_files',$update_files);

   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $smarty->assign('breadcrumbs',$breadcrumbs);
   $smarty->assign('subnav_location','subnav_update');
  break;
  case 'run_update':
   $smarty->assign('update_file',$update_file);

   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $breadcrumbs[1]['link'] = 'index.php?mode=admin&amp;action=update';
   $breadcrumbs[1]['linkname'] = 'subnav_update';
   $smarty->assign('breadcrumbs',$breadcrumbs);
   $smarty->assign('subnav_location','subnav_update_run');
  break;

  case "email_list":
   $email_result = mysql_query("SELECT user_email FROM ".$db_settings['userdata_table'], $connid);
   if (!$email_result) raise_error('database_error',mysql_error());
   while ($line = mysql_fetch_array($email_result))
    {
     $email_list[] = $line['user_email'];
    }
   mysql_free_result($email_result);
   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $breadcrumbs[1]['link'] = 'index.php?mode=admin&amp;action=user';
   $breadcrumbs[1]['linkname'] = 'subnav_user';
   $smarty->assign('breadcrumbs',$breadcrumbs);
   $smarty->assign('subnav_location','subnav_email_list');
   $smarty->assign('email_list',implode(", ",$email_list));
  break;
  case "clear_userdata":
   if(empty($logins)) $logins = 1;
   if(empty($days)) $days = 60;
   $smarty->assign('logins',$logins);
   $smarty->assign('days',$days);
   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $breadcrumbs[1]['link'] = 'index.php?mode=admin&amp;action=user';
   $breadcrumbs[1]['linkname'] = 'subnav_user';
   $smarty->assign('breadcrumbs',$breadcrumbs);
   $smarty->assign('subnav_location','subnav_clear_userdata');
  break;
  case "spam_protection":
   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $smarty->assign('breadcrumbs',$breadcrumbs);
   $smarty->assign('subnav_location','subnav_spam_protection');
   if(isset($_GET['saved'])) $smarty->assign('saved',true);

   // get banned users:
   $result=mysql_query("SELECT list FROM ".$db_settings['banlists_table']." WHERE name = 'user_agents' LIMIT 1", $connid);
   if(!$result) raise_error('database_error',mysql_error());
   $data = mysql_fetch_array($result);
   $smarty->assign('banned_user_agents',htmlspecialchars($data['list']));
   mysql_free_result($result);
   // get banned ips:
   $result=mysql_query("SELECT list FROM ".$db_settings['banlists_table']." WHERE name = 'ips' LIMIT 1", $connid);
   if(!$result) raise_error('database_error',mysql_error());
   $data = mysql_fetch_array($result);
   $smarty->assign('banned_ips',htmlspecialchars($data['list']));
   mysql_free_result($result);
   // get not accepted words:
   $result=mysql_query("SELECT list FROM ".$db_settings['banlists_table']." WHERE name = 'words' LIMIT 1", $connid);
   if(!$result) raise_error('database_error',mysql_error());
   $data = mysql_fetch_array($result);
   $smarty->assign('not_accepted_words',htmlspecialchars($data['list']));
   mysql_free_result($result);

   $smarty->assign('captcha_posting',$settings['captcha_posting']);
   $smarty->assign('captcha_email',$settings['captcha_email']);
   $smarty->assign('captcha_register',$settings['captcha_register']);
   $smarty->assign('bad_behavior',$settings['bad_behavior']);
   $smarty->assign('akismet_key',$settings['akismet_key']);
   $smarty->assign('akismet_entry_check',$settings['akismet_entry_check']);
   $smarty->assign('akismet_mail_check',$settings['akismet_mail_check']);
   $smarty->assign('akismet_check_registered',$settings['akismet_check_registered']);
   $smarty->assign('save_spam',$settings['save_spam']);
   $smarty->assign('auto_delete_spam',$settings['auto_delete_spam']);
 break;
  case "smilies":
   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $smarty->assign('breadcrumbs',$breadcrumbs);
   $smarty->assign('subnav_location','subnav_smilies');

  if($settings['smilies']==1)
  {
  $count_result = mysql_query("SELECT COUNT(*) FROM ".$db_settings['smilies_table'], $connid);
  list($smilies_count) = mysql_fetch_row($count_result);
  mysql_free_result($count_result);

  $fp=opendir('images/smilies/');
  while ($file = readdir($fp))
   {
    if(preg_match('/\.gif$/i', $file) || preg_match('/\.png$/i', $file) || preg_match('/\.jpg$/i', $file))
     {
      $smiley_files[] = $file;
     }
   }
  closedir($fp);

  if ($smilies_count > 0)
   {
    $result = mysql_query("SELECT id, file, code_1, code_2, code_3, code_4, code_5, title FROM ".$db_settings['smilies_table']." ORDER BY order_id ASC", $connid);
    if(!$result) raise_error('database_error',mysql_error());
    $i=0;
    while($line = mysql_fetch_array($result))
     {
      // remove used smilies from smiley array:
      if(isset($smiley_files))
       {
        unset($cleared_smiley_files);
        foreach($smiley_files as $smiley_file)
         {
          if($line['file']!=$smiley_file) $cleared_smiley_files[] = $smiley_file;
         }
        if(isset($cleared_smiley_files)) $smiley_files = $cleared_smiley_files;
        else unset($smiley_files);
       }

      unset($codes);
      if(trim($line['code_1'])!='') $codes[] = $line['code_1'];
      if(trim($line['code_2'])!='') $codes[] = $line['code_2'];
      if(trim($line['code_3'])!='') $codes[] = $line['code_3'];
      if(trim($line['code_4'])!='') $codes[] = $line['code_4'];
      if(trim($line['code_5'])!='') $codes[] = $line['code_5'];
      $codes_disp = implode(' &nbsp;',$codes);

      $smilies[$i]['id'] = $line['id'];
      $smilies[$i]['file'] = $line['file'];
      $smilies[$i]['code_1'] = $line['code_1'];
      $smilies[$i]['codes'] = $codes_disp;
      $smilies[$i]['title'] = $line['title'];
      $i++;
     }
    mysql_free_result($result);
   }
   else $smilies='';

   $smarty->assign('smilies',$smilies);

   if(isset($smiley_files)) $smiley_count = count($smiley_files);
   else $smiley_count = 0;
   if($smiley_count > 0) $smarty->assign('smiley_files',$smiley_files);
  }
  break;
  case 'edit_smiley':
   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $breadcrumbs[1]['link'] = 'index.php?mode=admin&amp;action=smilies';
   $breadcrumbs[1]['linkname'] = 'subnav_smilies';

   $smarty->assign('breadcrumbs',$breadcrumbs);
   $smarty->assign('subnav_location','subnav_edit_smiley');

   $fp=opendir('images/smilies/');
   while ($smiley_file = readdir($fp))
    {
     if(preg_match('/\.gif$/i', $smiley_file) || preg_match('/\.png$/i', $smiley_file) || preg_match('/\.jpg$/i', $smiley_file))
      {
       $smiley_files[] = $smiley_file;
      }
    }
   closedir($fp);
   if(isset($smiley_files)) $smiley_count = count($smiley_files);
   else $smiley_count = 0;
   if($smiley_count > 0) $smarty->assign('smiley_files',$smiley_files);
   $smarty->assign('id',$id);
   $smarty->assign('file',$file);
   $smarty->assign('code_1',$code_1);
   $smarty->assign('code_2',$code_2);
   $smarty->assign('code_3',$code_3);
   $smarty->assign('code_4',$code_4);
   $smarty->assign('code_5',$code_5);
   $smarty->assign('title',$title);
  break;
  case 'edit_user':
   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $breadcrumbs[1]['link'] = 'index.php?mode=admin&amp;action=user';
   $breadcrumbs[1]['linkname'] = 'subnav_user';
   $smarty->assign('breadcrumbs',$breadcrumbs);
   $smarty->assign('subnav_location','subnav_edit_user');
  break;
  case 'reset_uninstall':
   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $smarty->assign('breadcrumbs',$breadcrumbs);
   $smarty->assign('subnav_location','subnav_reset_uninstall');
  break;
  case 'spam_protection_submit':
   $akismet_key = trim($_POST['akismet_key']);
   if(empty($_POST['bad_behavior'])) $bad_behavior = 0; else $bad_behavior = 1;
   if(isset($_POST['captcha_posting'])) $captcha_posting = intval($_POST['captcha_posting']); else $captcha_posting = 0;
   if(isset($_POST['captcha_email'])) $captcha_email = intval($_POST['captcha_email']); else $captcha_email = 0;
   if(isset($_POST['captcha_register'])) $captcha_register = intval($_POST['captcha_register']); else $captcha_register = 0;
   if(empty($_POST['akismet_entry_check'])) $akismet_entry_check = 0; else $akismet_entry_check = 1;
   if(empty($_POST['akismet_mail_check'])) $akismet_mail_check = 0; else $akismet_mail_check = 1;
   if(empty($_POST['akismet_check_registered'])) $akismet_check_registered = 0; else $akismet_check_registered = 1;
   if(empty($_POST['save_spam'])) $save_spam = 0; else $save_spam = intval($_POST['save_spam']);

   // check akismet API key:
   if($akismet_key!='')
    {
     require('modules/akismet/akismet.class.php');
     $akismet = new Akismet($settings['forum_address'], $akismet_key);
     // test for errors
     if($akismet->errorsExist())
      {
       // returns true if any errors exist
       if($akismet->isError(AKISMET_INVALID_KEY))
        {
         $errors[] = 'error_akismet_api_key';
        }
       elseif($akismet->isError(AKISMET_RESPONSE_FAILED))
        {
         $errors[] = 'error_akismet_connection_admin';
        }
       elseif($akismet->isError(AKISMET_SERVER_NOT_FOUND))
        {
         $errors[] = 'error_akismet_connection_admin';
        }
      }
    }

   // banists:
   if(trim($_POST['banned_ips']) != '')
    {
     $banned_ips_array = preg_split('/\015\012|\015|\012/',$_POST['banned_ips']);
     foreach($banned_ips_array as $banned_ip)
      {
       if(trim($banned_ip)!='') $banned_ips_array_checked[] = trim($banned_ip);
      }
     natcasesort($banned_ips_array_checked);
     $banned_ips = implode("\n", $banned_ips_array_checked);
     if(is_ip_banned($_SERVER['REMOTE_ADDR'], $banned_ips_array_checked)) $errors[] = 'error_own_ip_banned';
    }
   else $banned_ips = '';

   if(trim($_POST['banned_user_agents']) != '')
    {
     $banned_user_agents_array = preg_split('/\015\012|\015|\012/',$_POST['banned_user_agents']);
     foreach($banned_user_agents_array as $banned_user_agent)
      {
       if(trim($banned_user_agent)!='') $banned_user_agents_array_checked[] = trim($banned_user_agent);
      }
     natcasesort($banned_user_agents_array_checked);
     $banned_user_agents = implode("\n", $banned_user_agents_array_checked);
     if(is_user_agent_banned($_SERVER['HTTP_USER_AGENT'], $banned_user_agents_array_checked)) $errors[] = 'error_own_user_agent_banned';
    }
   else $banned_user_agents = '';

   if(trim($_POST['not_accepted_words']) != '')
    {
     $not_accepted_words_array = preg_split('/\015\012|\015|\012/',$_POST['not_accepted_words']);
     foreach($not_accepted_words_array as $not_accepted_word)
      {
       if(trim($not_accepted_word)!='') $not_accepted_words_array_checked[] = trim($not_accepted_word);
      }
     natcasesort($not_accepted_words_array_checked);
     $not_accepted_words = implode("\n", $not_accepted_words_array_checked);
    }
   else $not_accepted_words = '';

   if(empty($errors))
    {
     mysql_query("UPDATE ".$db_settings['settings_table']." SET value='".mysql_real_escape_string($captcha_posting)."' WHERE name='captcha_posting'", $connid);
     mysql_query("UPDATE ".$db_settings['settings_table']." SET value='".mysql_real_escape_string($captcha_email)."' WHERE name='captcha_email'", $connid);
     mysql_query("UPDATE ".$db_settings['settings_table']." SET value='".mysql_real_escape_string($captcha_register)."' WHERE name='captcha_register'", $connid);
     mysql_query("UPDATE ".$db_settings['settings_table']." SET value='".mysql_real_escape_string($bad_behavior)."' WHERE name='bad_behavior'", $connid);
     mysql_query("UPDATE ".$db_settings['settings_table']." SET value='".mysql_real_escape_string($akismet_key)."' WHERE name='akismet_key'", $connid);
     mysql_query("UPDATE ".$db_settings['settings_table']." SET value='".intval($akismet_entry_check)."' WHERE name='akismet_entry_check'", $connid);
     mysql_query("UPDATE ".$db_settings['settings_table']." SET value='".intval($akismet_mail_check)."' WHERE name='akismet_mail_check'", $connid);
     mysql_query("UPDATE ".$db_settings['settings_table']." SET value='".intval($akismet_check_registered)."' WHERE name='akismet_check_registered'", $connid);
     mysql_query("UPDATE ".$db_settings['settings_table']." SET value='".intval($save_spam)."' WHERE name='save_spam'", $connid);
     mysql_query("UPDATE ".$db_settings['settings_table']." SET value='".intval($_POST['auto_delete_spam'])."' WHERE name='auto_delete_spam'", $connid);
     mysql_query("UPDATE ".$db_settings['banlists_table']." SET list='".mysql_real_escape_string($banned_ips)."' WHERE name='ips'", $connid);
     mysql_query("UPDATE ".$db_settings['banlists_table']." SET list='".mysql_real_escape_string($banned_user_agents)."' WHERE name='user_agents'", $connid);
     mysql_query("UPDATE ".$db_settings['banlists_table']." SET list='".mysql_real_escape_string($not_accepted_words)."' WHERE name='words'", $connid);

     if(trim($banned_ips=='') && trim($banned_user_agents=='')) $access_permission_checks = 0;
     else $access_permission_checks = 1;
     mysql_query("UPDATE ".$db_settings['settings_table']." SET value='".mysql_real_escape_string($access_permission_checks)."' WHERE name='access_permission_checks'", $connid);

     header("Location: index.php?mode=admin&action=spam_protection&saved=true");
     exit;
    }
   else
    {
     $smarty->assign('action','spam_protection');
     $smarty->assign('captcha_posting',$captcha_posting);
     $smarty->assign('captcha_email',$captcha_email);
     $smarty->assign('captcha_register',$captcha_register);
     $smarty->assign('bad_behavior',$bad_behavior);
     $smarty->assign('akismet_key',htmlspecialchars($akismet_key));
     $smarty->assign('akismet_entry_check',$akismet_entry_check);
     $smarty->assign('akismet_mail_check',$akismet_mail_check);
     $smarty->assign('akismet_check_registered',$akismet_check_registered);
     $smarty->assign('save_spam',$save_spam);
     $smarty->assign('auto_delete_spam',$_POST['auto_delete_spam']);
     $smarty->assign('banned_ips',htmlspecialchars($_POST['banned_ips']));
     $smarty->assign('banned_user_agents',htmlspecialchars($_POST['banned_user_agents']));
     $smarty->assign('not_accepted_words',htmlspecialchars($_POST['not_accepted_words']));
     $smarty->assign('errors',$errors);
     $breadcrumbs[0]['link'] = 'index.php?mode=admin';
     $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
     $smarty->assign('breadcrumbs',$breadcrumbs);
     $smarty->assign('subnav_location','subnav_spam_protection');
    }
  break;
  case 'pages':
   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $smarty->assign('breadcrumbs',$breadcrumbs);
   $smarty->assign('subnav_location','subnav_pages');

   $result = mysql_query("SELECT id, title, content, menu_linkname, access FROM ".$db_settings['pages_table']." ORDER BY order_id ASC", $connid) or raise_error('database_error',mysql_error());
   if(mysql_num_rows($result)>0)
    {
     $i=0;
     while($data= mysql_fetch_array($result))
      {
       $pages[$i]['id'] = intval($data['id']);
       $pages[$i]['title'] = $data['title'];
       $pages[$i]['content'] = $data['content'];
       $pages[$i]['menu_linkname'] = $data['menu_linkname'];
       $pages[$i]['access'] = intval($data['access']);
       $i++;
      }
     $smarty->assign('pages',$pages);
    }
   mysql_free_result($result);
  break;
  case 'edit_page':
   if(isset($_GET['edit_page']))
    {
     $id = intval($_GET['edit_page']);
     $result = mysql_query("SELECT id, title, content, menu_linkname, access FROM ".$db_settings['pages_table']." WHERE id = ".$id." LIMIT 1", $connid) or raise_error('database_error',mysql_error());
     if(mysql_num_rows($result)>0)
      {
       $data = mysql_fetch_array($result);
       $smarty->assign('id',$id);
       $smarty->assign('title',htmlspecialchars($data['title']));
       $smarty->assign('content',htmlspecialchars($data['content']));
       $smarty->assign('menu_linkname',htmlspecialchars($data['menu_linkname']));
       $smarty->assign('access',$data['access']);
      }
     mysql_free_result($result);
    }
   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $breadcrumbs[1]['link'] = 'index.php?mode=admin&amp;action=pages';
   $breadcrumbs[1]['linkname'] = 'subnav_pages';
   $smarty->assign('breadcrumbs',$breadcrumbs);
   if(isset($id)) $smarty->assign('subnav_location','subnav_edit_page');
   else $smarty->assign('subnav_location','subnav_add_page');
  break;
  case 'edit_page_submit':
   if(isset($_POST['id'])) $id = intval($_POST['id']);
   if(isset($_POST['title'])) $title = trim($_POST['title']); else $title='';
   if(isset($_POST['content'])) $content = trim($_POST['content']); else $content='';
   if(isset($_POST['menu_linkname'])) $menu_linkname = trim($_POST['menu_linkname']); else $menu_linkname='';
   if(isset($_POST['access']) && $_POST['access']==1) $access = 1; else $access = 0;

   if($title=='') $errors[] = 'error_no_page_title';

   if(empty($errors))
    {
     if(isset($id))
      {
       @mysql_query("UPDATE ".$db_settings['pages_table']." SET title='".mysql_real_escape_string($title)."', content='".mysql_real_escape_string($content)."', menu_linkname='".mysql_real_escape_string($menu_linkname)."', access=".intval($access)." WHERE id=".$id, $connid) or die(mysql_error());
      }
     else
      {
       list($pages_count) = mysql_fetch_row(mysql_query("SELECT COUNT(*) FROM ".$db_settings['pages_table'], $connid));
       $order_id = $pages_count+1;
       @mysql_query("INSERT INTO ".$db_settings['pages_table']." (order_id, title, content, menu_linkname, access) VALUES (".intval($order_id).", '".mysql_real_escape_string($title)."', '".mysql_real_escape_string($content)."', '".mysql_real_escape_string($menu_linkname)."', ".intval($access).")", $connid) or die(mysql_error());
      }
     header('Location: index.php?mode=admin&action=pages');
     exit;
    }
   else
    {
     if(isset($id)) $smarty->assign('id',$id);
     $smarty->assign('title',htmlspecialchars($title));
     $smarty->assign('content',htmlspecialchars($content));
     $smarty->assign('menu_linkname',htmlspecialchars($menu_linkname));
     $smarty->assign('access',$access);
     $breadcrumbs[0]['link'] = 'index.php?mode=admin';
     $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
     $breadcrumbs[1]['link'] = 'index.php?mode=admin&amp;action=pages';
     $breadcrumbs[1]['linkname'] = 'subnav_pages';
     $smarty->assign('breadcrumbs',$breadcrumbs);
     if(isset($id)) $smarty->assign('subnav_location','subnav_edit_page');
     else $smarty->assign('subnav_location','subnav_add_page');
     $smarty->assign('errors',$errors);
     $smarty->assign('action','edit_page');
    }
  break;
  case 'delete_page':
   $id = intval($_GET['delete_page']);
   $result = mysql_query("SELECT id, title FROM ".$db_settings['pages_table']." WHERE id= ".$id." LIMIT 1", $connid) or raise_error('database_error',mysql_error());
   if(mysql_num_rows($result)>0)
    {
     $data = mysql_fetch_array($result);
     $page['id'] = intval($data['id']);
     $page['title'] = $data['title'];
     $smarty->assign('page',$page);
    }
   mysql_free_result($result);
   $breadcrumbs[0]['link'] = 'index.php?mode=admin';
   $breadcrumbs[0]['linkname'] = 'subnav_admin_area';
   $breadcrumbs[0]['link'] = 'index.php?mode=admin&amp;action=pages';
   $breadcrumbs[0]['linkname'] = 'subnav_pages';
   $smarty->assign('breadcrumbs',$breadcrumbs);
   $smarty->assign('subnav_location','subnav_delete_page');
  break;
  case 'delete_page_submit':
   // delete item:
   mysql_query("DELETE FROM ".$db_settings['pages_table']." WHERE id= ".intval($_POST['id']), $connid) or raise_error('database_error',mysql_error());
   // reorder remaining items:
   $result = mysql_query("SELECT id FROM ".$db_settings['pages_table']." ORDER BY order_id ASC", $connid);
   $i=1;
   while($data = mysql_fetch_array($result))
    {
     mysql_query("UPDATE ".$db_settings['pages_table']." SET order_id=".$i." WHERE id = ".intval($data['id']), $connid);
     $i++;
    }
   mysql_free_result($result);
   header('Location: index.php?mode=admin&action=pages');
   exit;
  break;
  case 'move_page':
   if(isset($_GET['move_up_page'])) move_item($db_settings['pages_table'], intval($_GET['move_up_page']), 'up');
   elseif(isset($_GET['move_down_page'])) move_item($db_settings['pages_table'], intval($_GET['move_down_page']), 'down');
   header('Location: index.php?mode=admin&action=pages');
   exit;
  break;
  case 'move_smiley':
   if(isset($_GET['move_up_smiley'])) move_item($db_settings['smilies_table'], intval($_GET['move_up_smiley']), 'up');
   elseif(isset($_GET['move_down_smiley'])) move_item($db_settings['smilies_table'], intval($_GET['move_down_smiley']), 'down');
   header('Location: index.php?mode=admin&action=smilies');
   exit;
  break;
  case 'move_category':
   if(isset($_GET['move_up_category'])) move_item($db_settings['category_table'], intval($_GET['move_up_category']), 'up');
   elseif(isset($_GET['move_down_category'])) move_item($db_settings['category_table'], intval($_GET['move_down_category']), 'down');
   header('Location: index.php?mode=admin&action=categories');
   exit;
  break;
  case 'reorder':
   if(isset($_POST['pages']))
    {
     $table = $db_settings['pages_table'];
     $list = $_POST['pages'];
    }
   elseif(isset($_POST['smilies']))
    {
     $table = $db_settings['smilies_table'];
     $list = $_POST['smilies'];
    }
   elseif(isset($_POST['categories']))
    {
     $table = $db_settings['category_table'];
     $list = $_POST['categories'];
    }
   if(isset($list) && isset($table))
    {
     $list_items = explode(',', $list);
     $order_id = 1;
     foreach($list_items as $id)
      {
       mysql_query("UPDATE ".$table." SET order_id = ".$order_id." WHERE id = ".intval($id), $connid);
       ++$order_id;
      }
    } 
   exit;
  break;
 }

$smarty->assign('subtemplate','admin.inc.tpl');
$template = 'main.tpl';

}
else
{
 header("location: index.php");
 exit;
}
?>