If user "X" out or close a window, can you show warning and prevent it

[mb22]

If a user 'X's out of a browser without saving changes with a Save button that I have provided ... IS there a way I can poop up a warning that "Changes not Used" .. OK/Cancel

and Cancel the CLOSING of the page if the user chooses Cancel? ... like the VB QueryUnload event set to Cancel?

 

[adam0101]

Check out the onBeforeUnload event for IE.

Adam
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