/*  
mini OS v1.0

Scripted by season / www.season.es / creative, wise, fresh, knowledge.
Last update: Jan, 3rd 2005 

Feel free to spread it but keep this lines if you can.
*/

function muestra(id) {
	document.getElementById(id).style.visibility = 'visible';
}

function esconde(id){
	document.getElementById(id).style.visibility = 'hidden';	
}

function aleaIactaEst(minus,plus){
    nPosib = plus - minus
    alea = Math.random() * nPosib
    alea = Math.round(alea)
    return parseInt(minus) + alea
}