Question

I have this tiny script for now that checks if any change is made on the form. If there is a change
then I set a flag to ‘Y’. I call this function on onBeforeunload=”changeConfirm()” places in the body tag. I know
I can’t stop the user from closing down the window, but how do I make this scenario work where he made a change
-> decide to close the window -> Script alerted him -> User clicks cancel (Now I need to bring him back to the screen
instead of closing browser.

<script type="text/javascript">
var Flag= "";

function changeConfirm(){
if(Flag == 'Y')
 {
  var confirmStatus = confirm('Changes made. Dont want to save?');
 }
 else {
  alert("No changes were made " + Flag);
 }
}
 </script>

Answer 1

Try this :

 function confirmChanges() {
  if(Flag == 'Y')
   {
    if(confirm('Changes made. Dont want to save?')){
      return false;
    }else{
      return true;
    }
   }
   else {
    alert("No changes were made " + Flag);
   }
}