JS Error on Load

When we load our home page, a javascript error is trigger in all browsers:

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Error: b is undefined
Source File: http://rdcils.alphazeta.com/ScriptResource.axd?d=kWlQh5AyJDDyBrnKrnB7k2lM8soSE5pZ6nI1ck7PNNTPZJxH6r91FpO9gy-14HxNnF-yXRlf905shaSrE8E6vJj0lrRpAuWnFKKl0QsbJGVeqQozrPN4xHcJdqoPL4KqNwiAncV8YGEfLWkxT9qnLeve4PLbXXqwQBDDiKZCRrb0Q-SYZQoHoLqAfWZSQiMdKk2Y66mFg7gP4muorOOZ0g2&t=ffffffff950939e4
Line: 2713
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I stepped through javascript line by line in Firebug, it seems like the error has something to do with the on page 'edit' feature and/or the slideshow content population. The slideshow content population would make sense since in Home is the only page with the slideshow. I removed all the javascript we added and the error still occured. I removed all the content areas from the page and the error still occured. Only if I removed :

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'<form id="form1" runat="server">
        <telerik:RadScriptManager ID="radScriptManager" runat="server"></telerik:RadScriptManager>'

'</form'
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the error went away. 

Can you please help point me in the right direction on how to alleviate this issue? Much appreciated.