function init() {
	if (GDNetMenuDown.isSupported()) {
		GDNetMenuDown.initialize();				
	}
}
function loadImage(sFilename) {
	var img = new Image();
	img.src ="/images/" + sFilename;
	return img;
}
function swapImage(imgName, sFilename) {
	document.images[imgName].src = sFilename;
}