function writeCookie(name, value, hours)
{
  var expire = "";
  if(hours != null)
  {
    expire = new Date((new Date()).getTime() + hours * 3600000);
    expire = "; expires=" + expire.toGMTString();
  }
  document.cookie = name + "=" + escape(value) + expire;
}
var aCookie = document.cookie.split("; ");
function readCookie(CookieEleName)
{
  var cookieValue = "";
  for (var i=0; i < aCookie.length; i++){
	  var CookieArray = aCookie[i].split("=");
	  if (CookieEleName == CookieArray[0]){
			  cookieValue = unescape(decodeURI(CookieArray[1]));
	  }
}
  return cookieValue;
}