var onItem = "";
var itemSuffix = "_sub";
var menuActive = 0;

function rollOver(item) {
	if (menuActive == 1) {
		if (onItem != "") {
			rollOut(onItem);
		}
		if(item == section) {
			itemSuffix = "_contents";
		} else {
			itemSuffix = "_sub";
		}
		if(document.getElementById) {
			document.getElementById(item + itemSuffix).style.visibility = 'visible';
		} else if(document.layers) {
			document.layers[item + itemSuffix].style.visibility = 'visible';
		} else {
			document.all[item + itemSuffix].style.visibility = 'visible';
		}
		onItem=item;
	}
}

function rollOut(item) {
	if (menuActive == 1) {
		if(item == section) {
			itemSuffix = "_contents";
		} else {
			itemSuffix = "_sub";
		}
		if(document.getElementById) {
			document.getElementById(item + itemSuffix).style.visibility = 'hidden';
		} else if(document.layers) {
			document.layers[item + itemSuffix].style.visibility = 'hidden';
		} else {
			document.all[item + itemSuffix].style.visibility = 'hidden';
		}
	}
}

function activateMenu() {
	menuActive = 1;
}