// Create a cookie with the specified name and value.
// The cookie expires at the end of the 20th century.
function SetCookie(sName, sValue)
{
	date = new Date('10/10/2500');
	document.cookie = sName + "=" + escape(sValue) + "; expires=" +    date.toGMTString();
}
// Retrieve the value of the cookie with the specified name.
function GetCookie(sName)
{
  // cookies are separated by semicolons
   var aCookie = document.cookie.split("; ");
   for (var i=0; i < aCookie.length; i++)
   {
   // a name/value pair (a crumb) is separated by an equal sign
   var aCrumb = aCookie[i].split("=");
   if (sName == aCrumb[0]) 
      return unescape(aCrumb[1]);
   }

  // a cookie with the requested name does not exist
   return null;
}
// Delete the cookie with the specified name.
function DelCookie(sName)
{
    document.cookie = sName + "=" + escape(1) + "; expires=Fri, 31 Dec 1999 23:59:59 GMT;";
}