function CheckLogin(lan){
  var taget_obj = document.getElementById('join');
  myajax = new skyAjax(taget_obj,false,false,'','','');
  if(lan=='cna_en'){
  	myajax.SendGet2("/member/ajax_loginsta_en.php");
  }else if(lan=='cna_cn'){
  	myajax.SendGet2("/member/ajax_loginsta.php");
  }
  
  skyXHTTP = null;
}