var preloaded = [];

		
		for (var i = 1; i <= 1; i++) {
			preloaded[i] = [loadImage(i + "-0.gif"), loadImage(i + "-1.gif")];
		}

		function init() {
			
			if (mtDropDown.isSupported()) {
				mtDropDown.initialize();

				
				menu1.onactivate = function() { swapImage("button1", preloaded[1][1].src) };
				menu1.ondeactivate = function() { swapImage("button1", preloaded[1][0].src) };
			
			}
		}

		
		function loadImage(sFilename) {
			var img = new Image();
			img.src ="img/menu/" + sFilename;
			return img;
		}

		
		function swapImage(imgName, sFilename) {
			document.images[imgName].src = sFilename;
		}