cookieNow = document.cookie;

dmn = document.domain;
dmn = dmn.replace("www.","");
if (cookieNow.indexOf("domain=") == -1){
	baseref = new String(document.referrer);
	if ((baseref.indexOf(dmn) == -1) && (baseref != '')){
		document.cookie = "domain=" + dmn;
		document.cookie = "referrer=" + escape(baseref);
	}
}