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how to detach event : onbeforeunload or onunload? RRS feed

  • Question

  • Hello 

    i have tried add follow code to form onLoad event. but it doesn't work. 

    removeUnloadevent = function() {
        window.onbeforeunload = function() { }
        window.onunload = function() { }
      };
    
      removeUnloadevent();
      alert('hello');
      window.detachEvent("onbeforeunload", PromptAndReportAnyErrors);
    

    when you refresh or close page(tab), there is still warnning message:

     

    ----

    Are you sure you want to leave this page?

    Your changes have not been saved. To stay on the page so that you can save your changes...

    ----

     

    my questions is how to detach or remove such event?

    Thanks in advance.

    Friday, February 25, 2011 4:15 AM

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