Redirect the main window of the iframed form

redirectMainWindow.js

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script>
$(document).ready(function(){
  function openParentWindow(){
    if($("form.hs-form").length>0){
        $("form.hs-form").attr('target','_top');
    }
    else{
      setTimeout(openParentWindow,50);
	}
};
setTimeout(openParentWindow, 50);
});
</script>