To execute Flex cleanup function when browser is closed by user

Question

I have a Flex client application. I need a clean up function to run in Flex when the user closes the browser. I found the following solution on the net, but it only works ha

Answer 1

An alternate way to clean up the session on client side is to use JavaScript and external.interface class in as3. Here is sample code:

JavaScript:

function cleanUp()
{

    var process;
    var swfID="customRightClick";
    if(navigator.appName.indexOf("Microsoft") != -1){
        process = window[swfID];
        }else
    {
        process = document[swfID];
    }
    process.cleanUp();
}

and in the as3 class where the clean up function is defined use this:

import flash.external.ExternalInterface;

if (ExternalInterface.available)
{
    ExternalInterface.addCallback("cleanUp", cleanUp);
}

function cleanUp():void {// your code }