function preloader () {
	images = new Array();
	images[0] = "./images/buttons/home2.png"
	images[1] = "./images/buttons/history2.png"
	images[2] = "./images/buttons/menu2.png"
	images[3] = "./images/buttons/directions2.png"
	images[4] = "./images/buttons/contact2.png"
	for (var i=0; i<=4; i++) {
		imageObj = new Image();
		imageObj.src = images[i];
	}
}