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