function OnColor(elem) {
	var celda = document.getElementById(elem.id);
	celda.style.backgroundColor = "#003399";
	//celda.style.letterSpacing = "0.5mm";
	//celda.style.backgroundImage = "url('http://localhost/pepe/imagen/title_menu.png')";
}

function OffColor(elem) {
	var celda = document.getElementById(elem.id);
	celda.style.backgroundColor = "#009ACD";
	//celda.style.letterSpacing = "normal";
	//celda.style.backgroundImage = "none";
}