ICallbackEventhandler's GetCallbackResult() function not calling the client side javascript function in case of clik event of an ASP.net button control

[K Safvi]

Hi, I have implemented ICallbackEventHandler interface on a page and calling it in different context with different controls. Its working okay on keydown of a text box, click of an html button control and mouseover of a button control. But i need to use it with imagebutton or button control at click event. On click event the RaiseCallbackEvent function is called, then the GetCallbackResult(), but after that the GetCallbackResult() does not call the java script function that updates the page with the results retreived from GetCallbackResult(). This is only happning with click event of the ASP.net button or image button control and here also every thing is being invoking except the last javascript funciton that updates the page. Apparently there seem no problem in my code. it seems some thing special is required to be done for click event of the asp.net because same is done with the html button control. Second issue is that once the after the icallback, no server side event is fired e.g row_command of a gridview control. simply gv is cleared. Please help me. Most of the work is done, only minor issue is frustating me. Thanks, Safvi