function ChangeMenu(x)
{
	if(document.getElementById("item"+x).className == "close")
		{
			for (var i=1;i<=4;i++)
			{
     		 	document.getElementById("item"+i).className="close";		
			}
     		document.getElementById("item"+x).className="open";		
		}
		else
		{
			return true;
		}
}
function search_submit2(){
  if ((document.Form_search.company.value=="")&&(document.Form_search.kind.value=="")){
				alert('请选择查询条件！');
				return false;
  }
		return true;
}