function SetCookie( name, value, expires, path, domain, secure ) 
{
   // set time, it's in milliseconds
   var today = new Date();
   today.setTime(today.getTime());

   if (expires)
      expires = expires * 1000 * 60 * 60 * 24;
   
   var expires_date = new Date(today.getTime()+(expires));

   document.cookie = name+"="+escape(value)+((expires)?";expires="+expires_date.toGMTString():"")+((path)?";path="+path:"")+((domain)?";domain="+domain:"")+((secure)?";secure":"");
}

function GetCookie( name ) 
{
   var start = document.cookie.indexOf(name+"=");
   var len = start+name.length+1;
   if ( (!start) && (name!=document.cookie.substring(0,name.length)))
      return null;
   
   if (start==-1) 
      return null;
   
   var end = document.cookie.indexOf(";",len);
   if (end==-1) 
      end=document.cookie.length;
   
   return unescape(document.cookie.substring(len,end));
}

function DelCookie( name, path, domain ) 
{
   if (GetCookie(name)) 
      document.cookie = name + "=" + ((path)?";path="+path:"")+((domain)?";domain="+domain:"")+";expires=Thu, 01-Jan-1970 00:00:01 GMT";
}