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

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		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/MouseRO/home_over.gif");
		philosophy_over = newImage("Images/MouseRO/philosophy_over.gif");
		products_over = newImage("Images/MouseRO/products_over.gif");
		greenNews_over = newImage("Images/MouseRO/greenNews_over.gif");
		register_over = newImage("Images/MouseRO/register_over.gif");
		login_over = newImage("Images/MouseRO/login_over.gif");
		greenBlog_over = newImage("Images/MouseRO/greenBlog_over.gif");
		greenBlog_over = newImage("Images/MouseRO/jobBoard_over.gif");
		contact_over = newImage("Images/MouseRO/contact_over.gif");
		preloadFlag = true;
	}
}