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) {
		inicial_over = newImage("images/inicial-over.jpg");
		centro_over = newImage("images/centro-over.jpg");
		cadastro_over = newImage("images/cadastro-over.jpg");
		eventos_over = newImage("images/eventos-over.jpg");
		praticas_over = newImage("images/praticas-over.jpg");
		contato_over = newImage("images/contato-over.jpg");
		chagdud_over = newImage("images/chagdud-over.jpg");
		budismo_over = newImage("images/budismo-over.jpg");
		preloadFlag = true;
	}
}

preloadImages();