diff --git a/security_code.php b/security_code.php
index 28b548d..45fbf0d 100644
--- a/security_code.php
+++ b/security_code.php
@@ -1,15 +1,16 @@
 <?php
-	require_once ("core.php");
-    $security_id = md5(rand(6000,getrandmax())); // $security_id = md5(rand(6000,99999999999999991000));
+    require_once ("core.php");
+    // $security_id = md5(rand(6000,getrandmax())); // $security_id = md5(rand(6000,99999999999999991000));
+    $security_id = $_GET["id"];
 
     header('Content-Type:image/png');
-    $url = "http://order.".$domain."/image.php?id=".security_id;//图片链接
+    $url = "http://order.uiisc.com/image.php?id=".$security_id."";//图片链接
     $ch = curl_init();
-    //Cookie:PHPSESSID=121b1127dcded8702c6a1e702c40eca4
+    // Cookie:PHPSESSID=121b1127dcded8702c6a1e702c40eca4
     curl_setopt($ch, CURLOPT_URL, $url);
     // curl_setopt($ch,CURLOPT_COOKIE,'PHPSESSID=121b1127dcded8702c6a1e702c40eca4'); // 如果不需要cookies就删除这条语句
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, 0);
     curl_setopt($ch, CURLOPT_TIMEOUT,0); // 忽略超时
     curl_setopt($ch, CURLOPT_NOBODY, false);
     $str = curl_exec($ch);
-    curl_close($ch);
+    curl_close($ch);
\ No newline at end of file
diff --git a/signup.php b/signup.php
index 6605583..1a6e618 100644
--- a/signup.php
+++ b/signup.php
@@ -83,7 +83,7 @@
                 <div class="form-group">
                     <label for="inputID" class="col-sm-4 control-label" data-i18n="security_code">Security Code</label>
                     <div class="col-sm-5">
-                    <img width="90px" height="25px" src="//order.<?=$domain?>/image.php?id=<?=$security_id?>">
+                    <img width="90px" height="25px" src="./security_code.php?id=<?=$security_id?>">
                     <input type="hidden" name="id" class="form-control" id="inputID" placeholder="ID" value="<?=$security_id?>">
                     </div>
                 </div>