just verifying this:
"The Ajax Manager control is the first code in the aspx page"

And mentioning that although you didn't create any JavaScript, there may have been some from the Telrik controls.
Sounds like the issue went away so that is good.



>Tm,
>
>I am not sure what you're asking. The Ajax Manager control is the first code in the aspx page. Within the control are the directives that dictate the desired postback behaviour.
>
>
>>Hi Bob,
>>
>>I suspect the Telerik controls are using some JavaScript so you probably stumbled onto a correction just by changing the Ajax manager. You did have it before any Ajax controls in the order right?
>>Tim
>>
>>>Hi Paul,
>>>
>>>The Javascript error is being caused by the Telerik controls that I have on my page. I do not have any client side code (I wouldn't know how to write or add it to the page) in the form. I have a Telerik Ajax manager on the form as well as a Telerik Grid and I changed the Ajax manager (which determines what controls get refreshed and what graphic is displayed during a postback) and the problem went away. Still not sure exactly what was wrong but it appears to be a Telerik bug.
>>>
>>>Thanks for you help.
>>>
>>>>
>>>>It's a Javascript error. Do you have any custom JS code attached to anything? Are you populating the grid data in the NeedDataSource event?