function habilita()
{ 
document.getElementById('habilita').innerHTML = "<br><center>Colocar Nombre, Apellido, RIF, Email, Password</center><br>" 
form1.custom_rif.disabled = false;
form1.rif.disabled = false;
form1.custom_ci.disabled = true;
form1.ci.disabled = true;
//form.intereses[3].disabled = false;
}

function deshabilita()
{ 
document.getElementById('habilita').innerHTML = "<br><center>Colocar Nombre, Apellido, CI, Email, Password</center><br>" 
form1.custom_rif.disabled = true;
form1.rif.disabled = true;
form1.custom_ci.disabled = false;
form1.ci.disabled = false;
//form.intereses[3].disabled = false;
}