function viewTopSubMenu(param) {
	var areaMenu = $("areaTopSubMenu");
	if (areaMenu == null) return;
	var lenChild = areaMenu.childNodes.length;
	for (var i=0; i<lenChild; i++) areaMenu.childNodes[i].style.display = "none";
	for (var i=0; i<lenChild; i++) {
		if (areaMenu.childNodes[i].id == "areaTopSubMenu_"+ param) {
			areaMenu.childNodes[i].style.display = "";
			break;
		}
	}
}