function ClearCookie()
{
  var theCookie = document.cookie;
  var slCookie = theCookie.split(";");
  var CookieVal = new Array(1);
  for (var i=0 ; i < slCookie.length ; i++)
  {
    CookieVal = slCookie[i].split("=");
    DeleteCookie(GetTrim(CookieVal[0]));
  }
}