//显示菜单
function menu(){
	//显示菜单
	document.getElementById("menu").style.visibility='visible';
}
//显示菜单
function closeMenu(){
	//显示菜单
	document.getElementById("menu").style.visibility='hidden';
}


//显示所有企业
function corporation(){
	var corporation=document.getElementById("corporation");
	if(corporation.style.display=="none"){
		corporation.style.display='';
	}else
	{
		corporation.style.display='none';
	}
}
//选择城市分站点
function selectCity(){	
	var objCity=document.getElementById("city");
	var city=objCity.value;
	if(city==="cityNull"){
		alert("请选择城市分站!");
		return false;
	}else{
		window.top.location="filiale/index.asp?city="+city;	
	}
}