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 setCookie(NameOfCookie, value, expiredays)
{


var ExpireDate = new Date ();
ExpireDate.setTime(ExpireDate.getTime() + (expiredays * 60 * 1000));
//ExpireDate.setTime(ExpireDate.getTime() + (expiredays * 24 * 3600 * 1000));

document.cookie = NameOfCookie + "=" + escape(value) +
((expiredays == null) ? "" : "; expires=" + ExpireDate.toGMTString());
}