function $G(idname){
	if (document.getElementById){ return document.getElementById(idname); } 
	else if (document.all) { return document.all[idname];} 
	else if (document.layers) {	return document.layers[idname];	}
	else { return null; }
}


        function   closeErrors()   {   
          return   true;   
          }   
          window.onerror=closeErrors;   
  //屏蔽网页左下角错误