// JavaScript Document
function showMenu(id)
{
	//一级菜单图片切换
	/*var aImage=document.getElementById(id+"-img");
	var aStr = aImage.src; 
	if(aStr.indexOf("_01")>0)
	{
		aImage.src = aStr.replace("_01","_02");
	}
	else
	{
		aImage.src = aStr.replace("_02","_01");	
	}*/
	//二级菜单隐藏
	var aMenu=document.getElementById(id);
    if(aMenu.style.display=="")
    {
		aMenu.style.display="none";
    }
    else
    {
		aMenu.style.display="";	
    }
}