Trate haciendolo con ID pero tampoco, aca un ejemplo:
Código Javascript
:
Ver originalfunction bloquear(){
if(f.sexo.getElementById('1').checked == true){
f.upa.getElementById('1').disabled = true;
f.upa.getElementById('2').disabled = true;
f.upa.getElementById('3').disabled = false;
f.upa.getElementById('4').disabled = false;
f.upa.getElementById('5').disabled = false;
}else if(f.sexo.getElementById('2').checked == true){
f.upa.getElementById('1').disabled = false;
f.upa.getElementById('2').disabled = false;
f.upa.getElementById('3').disabled = true;
f.upa.getElementById('4').disabled = true;
f.upa.getElementById('5').disabled = false;
}
}
Código HTML:
<label for="sexo">Sexo:<br>
Masculino
<input type="radio" name="sexo" value="M" id="1">
Femenino
<input type="radio" name="sexo" value="F" id="2">
</label><br><br>
<label for"upa">Usted pertenece a:<br>
A
<input type="radio" name="upa" value="A" disabled id="1"><br>
B
<input type="radio" name="upa" value="B" disabled id="2"><br>
C
<input type="radio" name="upa" value="C" disabled id="3"><br>
D
<input type="radio" name="upa" value="D" disabled id="4"><br>
E
<input type="radio" name="upa" value="E" disabled id="5"><br><br>
</label>
???