<!--

function LayerVisibility(obj, ShowOpt) {
	if(document.layers)
		document.layers[obj].visibility = (ShowOpt == "visible")? "show" : "hide";
	else
		document.all[obj].style.visibility = ShowOpt;
}

tmpMenuNum = 0;

function SubMenu(MenuNum) {
	
	if(tmpMenuNum == MenuNum) return (false);
	if(tmpMenuNum != 0) LayerVisibility("sub" + tmpMenuNum, "hidden");

	LayerVisibility("menuback", "visible");
	LayerVisibility("sub" + MenuNum, "visible");

	tmpMenuNum = MenuNum;
}

function HiddenLayer() {
	if(tmpMenuNum != 0) LayerVisibility("sub" + tmpMenuNum, "hidden");
	LayerVisibility("menuback","hidden");
	tmpMenuNum = 0;
}

//-->