Detecting User Closing Window X button

[nanajee]

Hi,
I want call a function when the user trying to close a browser by clicking on close button.
for the above question i used onbeforeunload and onunload functions,these
two functions working when i clicked on close button ,but my prob with onbeforeunload and onunload functions is ,when i tried to change the url then
also the same functions calling so can any one give solution for me

Thanks in advance
Nanajee.

[acoder]

Unfortunately (of fortunately if you see it differently), it's not possible to determine if the current browser window is closed in a neat, cross-browser way. One or two hacks may work, but they wouldn't be reliable.

One possibility, though, is to use a popup window and from the parent, you could check the window.closed property.