<!DOCTYPE html>
<html>
<body>
<p>Set radio button value using JavaScript</p>
Married: <input type="radio" id="radiomarried">
Unmarried: <input type="radio" id="radioUnmarried">
<p>Click the "Try it" button to check the radio button.</p>
<button onclick="selectTheMariedButton()">Click if you are maried</button>
<button onclick="selectTheUnmariedButton()">Click if you are not maried</button>
<script>
function selectTheMariedButton() {
var x = document.getElementById("radiomarried");
x.checked = true;
alert("Married is selected");
}
function selectTheUnmariedButton() {
var y = document.getElementById("radioUnmarried");
y.checked = true;
alert("Unmarried is selected");
}
</script>
</body>
</html>