Hola
deccweb
Creo que esto te servirá:
Código PHP:
<html>
<head>
<script type="text/javascript">
function deshabilitar() {
for (i=0; ele= document.forms[0].rad[i]; i++)
ele.disabled = true;
}
</script>
</head>
<body>
<form>
<input type="radio" name="rad" onclick = "deshabilitar()" />
<input type="radio" name="rad" onclick = "deshabilitar()" />
<input type="radio" name="rad" onclick = "deshabilitar()" />
</form>
</body>
</html>
Saludos,