function btn_on(obj) {
	obj.style.backgroundColor = "#666666";
}

function btn_off(obj) {
	obj.style.backgroundColor = "#999999";
}

function txt_on(obj) {
	obj.style.backgroundColor = "#FFFFFF";
}

function txt_off(obj) {
	obj.style.backgroundColor = "#FFFFFF";
}

function lbl_on(obj) {
	var el = document.getElementById(obj);
	el.style.color = "#000000";
}

function lbl_off(obj) {
	var el = document.getElementById(obj);
	el.style.color = "#999999";
}

function menu_on_off(obj) {
	var el = document.getElementById(obj);

	if(el.style.display == "block") {
		el.style.display  = "none";
	}
	else {
		el.style.display  = "block";
	}
}

function lbl_show(nome)
{
	document.getElementById(nome).style.display = "block";
}

function lbl_hide(nome)
{
	document.getElementById(nome).style.display = "none";
}