x
<html><body><input type="radio" name="colors" value="red" id="myRadio">Red color<p>Click the buttons below to display and/or change the value of the value attribute of the radio button.</p><button onclick="display()">Display name</button><button onclick="change()">Change name</button><script>function display() { var x = document.getElementById("myRadio").value; alert("The value of the radio button is: " + x);}function change() { var x = document.getElementById("myRadio").value = "newRadioBtnValue"; alert ("The value was changed to: " + x);}</script></body></html>