function SetPUCookie(cookieName,cookieValue,nDays) {
 var today = new Date();
 var expire = new Date();
 if (nDays==null || nDays==0) nDays=1;
 expire.setTime(today.getTime() + 3600000*24*nDays);
 document.cookie = cookieName+"="+escape(cookieValue) + ";expires="+expire.toGMTString();
}

function popunderexternal(link,popurl) {
SetPUCookie('popexternal','1','1');
profile = window.open(popurl,'','width=800,height=600,left=1,top=1').blur();
window.focus();
setTimeout("profile.close()",1000);
window.open(link);
}