When closing Salesfoce page I have to get the alert like 'do you want close the page' . Like that I have to get the message when I am closing My salesforce Tab.
I am trying to capture the 'onunload' javascript event on a visual force page. Adding a html body tag and then adding the onunload event dosnt work. How can I capture this event.
In general I am trying to prompt the user when they move away from this page (either to another tab or link within the browser or if they decide to close the browser).
