function setPropertiesEnforcedCookie(c_name, c_value, expirehours) {
  try {
    var exdate = new Date();
    exdate.setTime(exdate.getTime() + (expirehours * 1000 * 60 * 60));
    document.cookie = c_name+ "=" + escape(c_value) + ((expirehours==null) ? "" : ";expires="+exdate.toGMTString()) + ";path=/" ;
  }
  catch (e) {
   alert(e.message);
  }
}