function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {

	if (document.images) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
        home_over = newImage("images/home-over.gif");
		pete_over = newImage("images/pete-over.gif");
		monkeebiz_over = newImage("images/monkeebiz-over.gif");
		store_over = newImage("images/store-over.gif");
		pictures_over = newImage("images/pictures-over.gif");
		blog_over = newImage("images/blog-over.gif");
		preloadFlag = true;
	}
}