var preloaded = [];


			preloaded[1] = [loadImage("11a.jpg"), loadImage("12a.jpg")];
			preloaded[3] = [loadImage("31a.jpg"), loadImage("32a.jpg")];
			preloaded[4] = [loadImage("41a.jpg"), loadImage("42a.jpg")];


		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) };

				menu3.onactivate = function() { swapImage("button3", preloaded[3][1].src) };
				menu3.ondeactivate = function() { swapImage("button3", preloaded[3][0].src) };

				menu4.onactivate = function() { swapImage("button4", preloaded[4][1].src) };
				menu4.ondeactivate = function() { swapImage("button4", preloaded[4][0].src) };
	}
		}

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

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