Why weren't tag IDs part of the parameters to these functions in the first place? Sigh. For now, just use the same as the name, which is OK except for radio buttons, which concatenate value onto the name.

functions/forms.php

@@ -17,9 +17,11 @@
  * Helper function to create form fields, not to be called directly,
  * only by other functions below.
  */
-function addInputField($type, $name = null, $value = null, $attributes = '') {
+function addInputField($type, $name = null, $value = null, $attributes = '', $id = null) {
     return '<input type="'.$type.'"'.
         ($name  !== null ? ' name="'.htmlspecialchars($name).'"'   : '').
+        ($id  !== null ? ' id="'.htmlspecialchars($id).'"'   
+            : ($name  !== null ? ' id="'.htmlspecialchars($name).'"'   : '')).
         ($value !== null ? ' value="'.htmlspecialchars($value).'"' : '').
         $attributes . " />\n";
 }
@@ -45,7 +47,7 @@ function addCheckBox($name, $checked = false, $value = null) {
  */
 function addRadioBox($name, $checked = false, $value = null) {
     return addInputField('radio', $name, $value,
-        ($checked ? ' checked="checked"' : ''));
+        ($checked ? ' checked="checked"' : ''), $name . $value);
 }
 
 /**
@@ -144,4 +146,4 @@ function addForm($action, $method = 'post', $name = '', $enctype = '', $charset
         $enctype . $name . $charset . ">\n";
 }
 
-?>
+?>