function habilita2()
{ 
document.getElementById('habilita').innerHTML = "" 
form1.pregunta.disabled = false;
form1.pregunta.disabled = false;
//form.intereses[3].disabled = false;
}

function deshabilita2()
{ 
document.getElementById('habilita').innerHTML = "" 
form1.pregunta.disabled = true;
form1.pregunta.disabled = true;
//form.intereses[3].disabled = false;
}

function deshabilita3()
{ 
document.getElementById('habilita').innerHTML = "" 
form1.pregunta_opcional.disabled = true;
form1.pregunta_opcional.disabled = true;
//form.intereses[3].disabled = false;
}
function habilita3()
{ 
document.getElementById('habilita').innerHTML = "" 
form1.pregunta_opcional.disabled = false;
form1.pregunta_opcional.disabled = false;
//form.intereses[3].disabled = false;
}