jQuery Forum

I hope someone can shed some on light on the following issue.

 

I have a page which includes the Prototype library.  Also on this page is a collapsible menu, which comes from http://www.lousyllama.com/sandbox/collapsible-menu. The first menu at left is in use. I had to modify the original jQuery code to get the collapsible menu to work on jQuery 1.4.2.

 

Problem:

 

An exception is being thrown (by the jQuery framework?):

 

Line: 464
Error: Array length must be assigned a finite positive number

 

The HTML:

 

 

The jQuery code:

 

By removing slideToggle(), the exception is not thrown.

 

jQuery(document).ready(function() {

    // Toggle the selected menu's class and expand or collapse the menu
    jQuery("#rd_menu_sample > li > a").mouseover(function() {
        jQuery(this).toggleClass("expanded").find("+ ul").slideToggle("medium");
    });

});

 

In the HEAD tag, in order shown:

 

<script src='http://IP address/xxx/Themes/Print Book/scripts/jquery-1.4.2.min.js' language='javascript' type='text/javascript'></script>
<script src='http://IP address/xxx/Themes/Print Book/scripts/CollapsibleMenuNoConflict.js' language='javascript' type='text/javascript'></script>
 
        <script language="javascript" type="text/javascript">
            jQuery.noConflict();
        </script>

 

<script language='javascript' src='http://IP address//xxx/SmartView/lightbox/js/prototype.js'></script>
<script language='javascript' src='http://IP address//xxx/SmartView/lightbox/js/lightbox.js'></script>
<script language='javascript' src='http://IP address//xxx/SmartView/lightbox/js/scriptaculous.js?load=effects'></script>

 

What exactly is the problem and can it be resolved?

 

Thanks in advance.