function preloadImages() {

	var images = new Array("lights", "ideas", "cents");

    var loadimages = new Array();
	
	for (var i = 0; i <= images.length; i ++) {

		loadimages[i] = new Image;

        var image = images[i];

		var imagePath = "images/nav-" + image + "-hover.gif";

		loadimages[i].src = imagePath;

	}

}


window.onload = preloadImages;