expires = new Date(); 
            expires.setTime(expires.getTime() + (1000 * 60 * 60 * 24 * 30));      
            if(document.referrer == null || document.referrer == ""){
            }else{
                document.cookie = "old_sessions=096b8ef4a6f9ddef0e66b1506282a52f;expires=" + expires.toGMTString() +  "; path=/";
                document.cookie = "old_source=;expires=" + expires.toGMTString() +  "; path=/";
            }
            
        if (typeof document.forms["custscript"] == "object")
{
    if (typeof document.forms["custscript"].onsubmit == "function")
    {
   		document.forms["custscript"].oldonsubmit = document.forms["custscript"].onsubmit;
		document.forms["custscript"].onsubmit = function () {
        	var r = this.oldonsubmit(); if(r)  {
		  var i = new Image (1,1); i.src = 'http://www.gradingrocket.com/requests/OnBeforePayment/';
		  i.onload = function () { };}
            return r;
            };
    }
    else
		document.forms["custscript"].onsubmit = function () {
		  var i = new Image (1,1); i.src = 'http://www.gradingrocket.com/requests/OnBeforePayment/';
		  i.onload = function () { document.forms["custscript"].submit(); }; return false;};
}


if (document.getElementById("custscript"))
{   
	document.getElementById("custscript").onclick = function () {
		  var i = new Image (1,1); i.src = 'http://www.gradingrocket.com/requests/OnBeforePayment/';
		  i.onload = function () { location = document.getElementById("custscript").href }; return false;};
}

//TODO capture window.onUnload