// Текущее выделенное меню
var secondLevelSelected = 0;
function overTopLevel(id){
	var x;
	if(secondLevelSelected){
		x = document.getElementById("bar"+secondLevelSelected);
		x.className = "hidden";
	}
	x = document.getElementById("bar"+id);
	x.className = "visible";
	secondLevelSelected = id;
}