function menuOver(obj) {
	backgroundImage = "url(images/menu-botao-over.jpg)";
	
	obj.style.backgroundImage = backgroundImage;
	obj.style.color = "white";
}

function menuOut(obj) {
	backgroundImage = "url(images/menu-botao-normal.jpg)";
	
	obj.style.backgroundImage = backgroundImage;
	obj.style.color = "#333333";
}