[jQuery] Jquery and AJAX

[jQuery] Jquery and AJAX


I have a form with updatePanel. I ahve Jquery inimplemented on this
form.
Everything works fine, but when a asynchronous postback takes place
when I clickc the button inside the updatePanle, all Jquery features
goes away.
I googled for this and found that, I need to write the Jquery code in
PageLoad, can anyone give me a sample code example for this...?? Also
How to check in jquery , if a perticular radiobutton is checked/
selected...???
Thanks in advance....