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");
		draculino_over = newImage("images/draculino_over.gif");
		news_over = newImage("images/news_over.gif");
		seminars_over = newImage("images/seminars_over.gif");
		photos_over = newImage("images/photos_over.gif");
		interviews_over = newImage("images/interviews_over.gif");
		cadastre_over = newImage("images/cadastre_over.gif");
		contact_over = newImage("images/contact_over.gif");
		links_over = newImage("images/links_over.gif");
		portugues_over = newImage("images/portugues_over.gif");
		gbbh_over = newImage("images/gbbh_over.gif");
		titles_over = newImage("images/titles_over.gif");
		instructors_over = newImage("images/instructors_over.gif");
		branches_over = newImage("images/branches_over.gif");
		blackbelts_over = newImage("images/blackbelts_over.gif");
		mma_over = newImage("images/mma_over.gif");
		schedule_over = newImage("images/schedule_over.gif");
		preloadFlag = true;
	}
}