var preloaded = [];

for (var i = 1; i <= 9; i++) {
	preloaded[i] = [loadImage("image/" + i + "-0.gif"), loadImage("image/" + 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) };

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) };

menu8.onactivate = function() { swapImage("button8", preloaded[8][1].src) };
menu8.ondeactivate = function() { swapImage("button8", preloaded[8][0].src) };

menu9.onactivate = function() { swapImage("button9", preloaded[9][1].src) };
menu9.ondeactivate = function() { swapImage("button9", preloaded[9][0].src) };
}
}

function loadImage(sFilename) {
	var img = new Image();

	img.src =sFilename;
	return img;
}


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