// JavaScript Document
function fncMostraOn(bt_off,bt_on){
	document.getElementById(bt_off).style.display='none';
	document.getElementById(bt_on).style.display='';
}

function fncMostraOff(bt_off,bt_on){
	document.getElementById(bt_off).style.display='';
	document.getElementById(bt_on).style.display='none';
}