var sinhvienit=0;
	function SVIT_ADS_GetCookie(Name){
		var re=new RegExp(Name+"=[^;]+", "i");
		if (document.cookie.match(re)) 
  			return decodeURIComponent(document.cookie.match(re)[0].split("=")[1]); 
		return ""
	}

	function SVIT_ADS_SetCookie(name, value, days){
		if (typeof days!="undefined"){ 
 			var expireDate = new Date()
  			var expstring=expireDate.setDate(expireDate.getDate()+days)
  			document.cookie = name+"="+decodeURIComponent(value)+"; expires="+expireDate.toGMTString()
		}
		else document.cookie = name+"="+decodeURIComponent(value);
	}

	function vtlai_popup()
	{
			var cookie_popup_ads = SVIT_ADS_GetCookie('sinhvienit_popup_ads');
			if (cookie_popup_ads=='') {				
			   if(sinhvienit==0)
				{			
					sinhvienit=1;
					var Time_expires = 24 * 3600 * 1000;
					SVIT_ADS_SetCookie('sinhvienit_popup_ads','true',Time_expires);
					var urllist = ['http://truongton.net/ads/ngoinhachungnet.php'];
					var url = urllist[Math.floor(Math.random() * urllist.length)];
					var params = 'width=' + '800';
					params += ', height=' + '400';
					params += ',scrollbars=yes,status=1,toolbar=1,menubar=1,resizable=1,location=1,directories=1';
					var pop_ads_open1 = window.open(url, 'sinhvienit_ads_pop1', params +', top=100,left=400');
					var pop_ads_open2 = window.open('http://dianguc.tv/ngoinhachung.html', 'sinhvienit_ads_pop2', params+', top=0, left=0');
				}
			}
	}