function mostra(lay) {
        par = "menu1_dev"
        for (var i=1; i < 6; i++) {
            parm = par + i
            parb = parm + "b"
            document.getElementById(parm).style.visibility = 'hidden'
            document.getElementById(parb).style.color='#f2cf24'
            document.getElementById(parb).style.background='transparent'
        }
        if (lay != "canc") {
            lay2 = lay + "b"
            document.getElementById(lay).style.visibility='visible'
            document.getElementById(lay2).style.color='red'
            document.getElementById(lay2).style.background='#f2cf24'
        }
}

function legen(lay) {
        par = "menu2_leg"
        for (var i=1; i < 4; i++) {
            parm = par + i
            document.getElementById(parm).style.visibility = 'hidden'
        }
        if (lay != "canc") {
            document.getElementById(lay).style.visibility='visible'
        }
	mostra("canc");
}