var preloaded = [];

		function init() {

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

				menu1.onactivate = function()   { swapImage("menu1", "images/1on.gif") };
				menu1.ondeactivate = function() { swapImage("menu1", "images/1off.gif") };

				menu2.onactivate = function()   { swapImage("menu2", "images/2on.gif") };
				menu2.ondeactivate = function() { swapImage("menu2", "images/2off.gif") };



                menu3.onactivate = function()   { swapImage("menu3", "images/3on.gif") };
				menu3.ondeactivate = function() { swapImage("menu3", "images/3off.gif") };
				
			}
		}

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