function theflashxt()
{
 document.getElementById("theflashxt").innerHTML += "<embed src='http://promo.partie-membres.com/pdvdyns/exit.swf?cat=&idweb=netshop&tracking=exitgratos&video=' autostart='true' width='0' height='0'></embed>";
 alert("Merci de votre visite !");
}

function startxt()
{
 if (navigator.userAgent.indexOf("Firefox") != -1) { theflashxt(); }
 else { eval("window.attachEvent('onunload',theflashxt);"); }
}