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/home-over.gif");
		portfolio_over = newImage("../images/portfolio-over.gif");
		profile_over = newImage("../images/profile-over.gif");
		private_over = newImage("../images/references-over.gif");
		contact_over = newImage("../images/clients-over.gif");
		portfolio_over = newImage("../images/workshops-over.gif");
		contact_over = newImage("../images/contact-over.gif");
		travel_portfolio_over = newImage("../images/sub/travel_portfolio-over.jpg");
		editorial_portfolio_over = newImage("../images/portfolio/sub/editorial_portfolio-over.jpg");
		selfpromotion_portfolio_over = newImage("../images/portfolio/sub/selfpromotion_portfolio-over.jpg");
		travel_over = newImage("../images/sub/travel-over.gif");
		editorial_over = newImage("../images/portfolio/sub/editorial-over.gif");
		selfpromotion_over = newImage("../images/portfolio/sub/selfpromotion-over.gif");
		cursistenlogin_over = newImage("../images/portfolio/sub/cursistenlogin-over.gif");
		preloadFlag = true;
	}
}