var urlText=document.URL;
var urlRegex= /\/([A-F0-9]{8})\//;
var result = urlText.match(urlRegex);

// Specify popup URL here
exitURL = "http://www.blackmama.com/pop-it.html";
// Specify popup width
exitwidth = 606;
// Specify popup height
exitheight = 403;
// Special Parameters
winParams = "toolbar=no,location=no,status=no,menubar=no,scrollbars=no,resizable=yes,top=0,left="+Math.round((screen.availWidth-exitwidth)/2) +",width="+exitwidth+",height="+exitheight;

window.attachEvent('onerror',pop);
attachEvent('onbeforeunload',pop);

var exit=true;

function doPopup() {}

function pop() {
if (exit==true) {
			window.showModalDialog(exitURL,"","center: Yes; help: No; resizable: No; status: No; scroll: No; dialogHeight: "+exitheight+"px; dialogWidth: "+exitwidth+"px; dialogTop: 0px; dialogLeft: "+Math.round((screen.availWidth-exitwidth)/2+"px;"));
			exit=false;
}
}