This code is not working....
selection of both radiobuttons, disable check boxes
<html>
<head>
<script>
function update() {
var rb = document.getElementById("myRadioButton").value;
if (rb == 1) {
document.getElementById("x1").disabled = true;
document.getElementById("x2").disabled = true;
}else{
document.getElementById("x1").disabled = false;
document.getElementById("x2").disabled = false;
}
}
</script>
</head>
<body>
<form>
<input type="radio" name="myRadioButton" id="r1" value="1" onclick="update();" />
<input type="radio" name="myRadioButton" id="r2" value="2" onclick="update();" />
<input type="checkbox" name="myCheckBox1" id="x1" value="a" />
<input type="checkbox" name="myCheckBox1" id="x2" value="b" />
</form>
</body>
</html>