function SetCookie(sName, sValue)   
{   
  date = new Date();   
  document.cookie = sName + "=" + escape(sValue) + "; expires=Fri, 31 Dec 2018 23:59:59 GMT;";
  
}   
function GetCookie(sName)   
{   
  var aCookie = document.cookie.split("; ");   
  for (var i=0; i < aCookie.length; i++)   
  {   
    var aCrumb = aCookie[i].split("=");   
    if (sName == aCrumb[0])    
      return unescape(aCrumb[1]);   
  }   
  return 0;   
}   
function DelCookie(sName)   
{   
  document.cookie = sName + "=" + escape(sValue) + "; expires=Fri, 31 Dec 1999 23:59:59 GMT;";   
}