/* CSS Document */
function $(objId){
	return document.getElementById(objId);
}
function changeId(idName,obj){
	$(idName).id="";
	obj.id=idName;
	obj.blur();
}



function qiehuan(num){
		for(var id = 0;id<=10;id++)
		{
			if(id==num)
			{
				document.getElementById("qh_con"+id).style.display="block";
				document.getElementById("mynav"+id).className="nav_on";
			}
			else
			{
				document.getElementById("qh_con"+id).style.display="none";
				document.getElementById("mynav"+id).className="";
			}
		}
	}