//推拉门
function menu_on(x,id,y)
{
for(i=1;i<=y;i++)
{
document.getElementById("menu_"+x+"_"+i+"_"+y).className = "menu_off";
document.getElementById("cont_"+x+"_"+i+"_"+y).style.display = "none";
}
document.getElementById("menu_"+x+"_"+id+"_"+y).className = "menu_on";
document.getElementById("cont_"+x+"_"+id+"_"+y).style.display = "block";
}
//推拉门end
