//²Ëµ¥ÑùʽÇл»
function ShowObj(objname){
	document.getElementById(objname).className  = "current";
}
function HideObj(objname){
	document.getElementById(objname).className  = "hx";
}
function ShowMenu(id){
	for(i=1;i<=7;i++){
		if(i==id){
			ShowObj('menu'+i);
		}else{
			HideObj('menu'+i);
		}
	}
}