function getCookieVal (offset) {
var endstr = document.cookie.indexOf (";", offset);
if (endstr == -1)
endstr = document.cookie.length;
return unescape(document.cookie.substring(offset, endstr));
}

function GetCookie (name) {
var arg = name + "=";
var alen = arg.length;
var clen = document.cookie.length;
var i = 0;
while (i < clen) {
var j = i + alen;
if (document.cookie.substring(i, j) == arg)
return getCookieVal (j);
i = document.cookie.indexOf(" ", i) + 1;
if (i == 0)
break;
}
return null;
}


function popup1()
{

var counter = GetCookie('counter1');

if (counter != null) 


	{ //если существует cookie по имени  counter    
//	alert("first");
	counter=counter.substring(0, 1)
	//		alert(counter);
		if(counter!=4)//если  баннер показан меньше 3 раз
		{
		counter++;
		document.cookie="counter1="+counter+";";


		nw=window.open('/popup/popup.html','popup','width=500,height=700');
		nw.focus();
		}
	}	


	else  //если нет куки counter
		{setcookie();}


	}




function setcookie()
{

var counter=1;
  var exp1=new Date();  
  var expire=30*24*3600*1000;
  var cookieexpire=exp1.getTime()+expire;  
 exp1.setTime(cookieexpire);  
 document.cookie="counter1="+counter+"; expires="+exp1.toGMTString();
 popup1();  

  }