function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*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 eraseCookie(name) {
	createCookie(name,"",-1);
}

function doit(){

 var t = ''; 
 var v = ''; 
 var q = false; 
 var k = '';
 var ereg = /refv=/;
 
 
 t = document.location.href;
  
 try {
 
 t = t.split("?");
 

 v = t[1];
 
 v = v.split("&");
 
 
 for(i=0;i<v.length;i++) 
 {
    k = v[i];
    if( ereg.exec(k) )
		{
			q = k;

		}
 
 }
 
 if( q ) {
   
	   q = q.split('=');
		 q = q[1];
 
 }else {


		if(t[1])
		q = t[1];
 
 } 
 
 
  if(q)
	 createCookie('refv',q,10);
	 
	 
	}
	catch (e) {}
 

}

window.onload = doit;