var showMenu = '';
var selectedMenu = '';
var img = '';
var imgName = '';


function rollOver(id, hi, isDiv) {
	if (isDiv) {
		if (imgName != id)
			changeImage();
		img = document.images['img' + id].src.substring(0, document.images['img' + id].src.length - 6) + (selectedMenu == id ? 'hi' :  hi) + '.gif';
		imgName = id;
	} else {
		img = document.images['img' + id].src.substring(0, document.images['img' + id].src.length - 6) + (selectedMenu == id ? 'hi' :  hi) + '.gif';
		imgName = id;
		changeImage();
	}
	
	if (hi == 'hi') {
		showMenu = id;
		updateNavigation();
	} else {
		showMenu = '';
		window.setTimeout('updateNavigation()', 750);
	}
}

function changeImage() {
	if (imgName != '' && img != '')
		document.images['img' + imgName].src = img;
}

function updateNavigation() {
	changeImage();
	if (subNavLayers && subNavLayers.length) {
		for (i=0; i<subNavLayers.length; i++) {
			changeLayer(subNavLayers[i]);
		}
	}
}

function changeLayer(name) {
	if (document.getElementById('subnavFloat' + name)) {
		document.getElementById('subnavFloat' + name).style.display = (name == showMenu ? 'block' : 'none');
/*		if (name == showMenu && document.getElementById('formElementHider')) {
			var ifrm = document.getElementById('formElementHider');
			var ele = document.getElementById('subnavFloat' + name);
			alert(ele.style.width);
		} */
	}
}