function openChat() {
URL ='http://web-expert.gr/livechat/chat.php';
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(URL, '" + id + "', 'width=600,height=550,left=0,top=0,resizable=yes,menubar=no,location=no,status=yes,scrollbars=yes');");
}

var script = document.createElement("script");script.type="text/javascript";
var src = "http://web-expert.gr/livechat/server.php?request=track&output=jscript&nse="+Math.random();setTimeout("script.src=src;document.getElementById('livezilla_tracking').appendChild(script)",1);