var preloaded = [];

		for (var i = 1; i <= 7; i++) {
			// First one is mouse out image and second one is on mouse over image
			preloaded[i] = [loadImage("v_" + i + ".png"), loadImage("v_" + i + "_over.png")];
		}

		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)};

				menu2.onactivate = function() {swapImage("button2", preloaded[2][1].src)};
				menu2.ondeactivate = function() {swapImage("button2", preloaded[2][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)};

                menu5.onactivate = function() {swapImage("button5", preloaded[5][1].src)};
				menu5.ondeactivate = function() {swapImage("button5", preloaded[5][0].src)};

				menu6.onactivate = function() {swapImage("button6", preloaded[6][1].src)};
				menu6.ondeactivate = function() {swapImage("button6", preloaded[6][0].src)};
				
				menu7.onactivate = function() {swapImage("button7", preloaded[7][1].src)};
				menu7.ondeactivate = function() {swapImage("button7", preloaded[7][0].src)};
			
			}
		}

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

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