//<script>
			function createCookieSec(name, value, seconds) {
				if (seconds) {
					var date = new Date();
					date.setTime(date.getTime()+(seconds*1000));
					var expires = "; expires="+date.toGMTString();
				}
				else var expires = "";
				document.cookie = name+"="+value+expires+"; path=/";
			}
			function readCookie(name) {
				var nameEQ = name + "=";
				var ca = document.cookie.split(';');
				for(var i=0;i < ca.length;i++) {
					var c = ca[i];
					while (c.charAt(0)==' ') c = c.substring(1,c.length);
					if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
				}
				return null;
			}
			function _uVoid() 
			{ 
			return; 
			}
			var c=readCookie('__esc1');
			if(c) 
			{}
			else {c=Math.round(Math.random()*2147483647);}
			createCookieSec('__esc1',c,60*10);//refresh cookie to last 10 more minutes
			var i=new Image(1,1);
			i.src='http://www.viettechltd.com/support/chat.php?sid=1&a=track&id='+escape(c)+'&referrer='+encodeURIComponent(document.referrer)+'&page='+encodeURIComponent(document.location);
			i.onload=function() {_uVoid();};
			if(window.addEventListener)
			{
			window.addEventListener('beforeunload',function()
			{
			var i=new Image(1,1);i.src='http://www.viettechltd.com/support/chat.php?sid=1&a=track&id='+escape(readCookie('__esc1'))+'&leaving='+encodeURIComponent(document.location);
			i.onload=function() 
			{_uVoid();};},false);
			}
			else if (window.attachEvent){
				window.attachEvent('onbeforeunload',function(){var i=new Image(1,1);i.src='http://www.viettechltd.com/support/chat.php?sid=1&a=track&id='+escape(readCookie('__esc1'))+'&leaving='+encodeURIComponent(document.location);i.onload=function() {_uVoid();};});
			}
			
			//</script>
							var s="<a class=\"cmdlink\" href=\"#\" onclick=\"window.open(\'http://www.viettechltd.com/support/chat.php?sid=1&a=99&id=\'+readCookie(\'__esc1\'),\'\',\'width=500,height=500,toolbar=0,resizable=1,scrollbars=1\');return false;\">";
									s+="<img border=0 alt=\"Click to chat\" src=\"http://viettechltd.com/support/ico/chat_online2.gif\" />";
								s+="</a>";
								document.write(s);