Hi, I'm having trouble loading JQueryUI from Google's CDN. I've got an ASP.NET application that and am using this to call the scripts:

    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js" type="text/javascript"></script> 
    <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/jquery-ui.js" type="text/javascript"></script> 
    <link href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/ui-darkness/jquery-ui.css" rel="stylesheet" type="text/css" />


<script type="text/javascript">
    $(function() {

        $("#accordion").accordion();
    });
    </script>
</asp:Content>

I then have a test accordion:

<div id="accordion">
    <h3><a href="#">First header</a></h3>
    <div>First content</div>
    <h3><a href="#">Second header</a></h3>
    <div>Second content</div>
</div>

However, this doesn't work. I used Chrome's Dev tool and I get this error: Uncaught Error: The 'accordion' plugin requires Sys.scripts.ExtendedAccordion to be loaded with a call to Sys.require() first

I'm also using MS' Ajax CDN in my masterpage, so could that be causing a problem?

Thanks