function openSurehits(sid,ip) {
	var popunder='specialoffer.php?PromoID=' + sid;
	if (ip) {
		var popunder = popunder + '&ip=' + ip;
	}

	//specify popunder window features
	//set 1 to enable a particular feature, 0 to disable
	var winfeatures="width=650,height=600,toolbar=no,menubar=no,left=295,top=50,screenX=200,screenY=250,scrollbars=1"

	//Pop-under only once per browser session? (0=no, 1=yes)
	//Specifying 0 will cause popunder to load every time page is loaded
	var once_per_session=0

	///No editing beyond here required/////

	function get_cookie(Name) {
		var search = Name + "="
		var returnvalue = "";
		if (document.cookie.length > 0) {
			offset = document.cookie.indexOf(search)
			if (offset != -1) { // if cookie exists
			  offset += search.length
			  // set index of beginning of value
			  end = document.cookie.indexOf(";", offset);
			  // set index of end of cookie value
			  if (end == -1)
			     end = document.cookie.length;
			  returnvalue=unescape(document.cookie.substring(offset, end))
			  }
		 }
		return returnvalue;
	}

	function loadornot(){
	if (get_cookie('popunder')==''){
	loadpopunder()
	document.cookie="popunder=yes"
	}
	}

	function loadpopunder(){
	win2=window.open(popunder,"surehits",winfeatures)
	win2.blur()
	window.focus()
	}

	if (once_per_session==0)
	loadpopunder()
	else
	loadornot()
}

var doing_redir = true;
var status_check= setInterval("CheckStatus()",500);
var unload_clicked = false;
var oldonload_exists;
var old_onload_set;

var CheckStatus = function() {
if(unload_clicked  == true)
	{
		doing_redir = true;
		clearInterval(status_check);
	}
}

window.onbeforeunload = function () {
	if(!doing_redir) {
		openSurehits(sid,ip);
	}
}

if(window.onload != undefined) {		
	if(!oldonload_exists) {
		oldonload = window.onload;
		old_onload_set = true;				
		oldonload_exists = true;
	}
}

onload = function() {
	if(window.onload != undefined) {
		doing_redir = false;
		if(old_onload_set) {
			oldonload();
			old_onload_set = false;
		}
	}
}