some changes to setHelpButton methods on elements and MoodleQuickForm to allow non standard help buttons such as the grades pop up window.

lib/form/hidden.php

@@ -3,7 +3,7 @@ require_once('HTML/QuickForm/hidden.php');
 
 /**
  * HTML class for a hidden type element
- * 
+ *
  * @author       Jamie Pratt
  * @access       public
  */
@@ -19,9 +19,10 @@ class MoodleQuickForm_hidden extends HTML_QuickForm_hidden{
      *
      * @access   public
      * @param array $help array of arguments to make a help button
+     * @param string $function function name to call to get html
      */
-    function setHelpButton($helpbuttonargs){
-        
+    function setHelpButton($helpbuttonargs, $function='helpbutton'){
+
     }
     /**
      * get html for help button