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Asked: 2026-05-17T03:14:09+00:00

I want to select a radio button from javascript. I am using this simple

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I want to select a radio button from javascript. I am using this simple html file to test the issue. The code below works correctly on firefox and chrome, however it does not work in IE (no version works). I would like to know why the supplied code does not work on IE, and how to select a radio button in IE?

<html>
<head>
    <script type="text/javascript">
        function chooseOne()
        {
            var randomChoice = Math.round(Math.random() * 2);

            if(randomChoice == 0)
            {
                document.getElementById("test0").checked = true;
            }
            else if (randomChoice == 1)
            {
                document.getElementById("test1").checked = true;
            }
            else
            {
                document.getElementById("test2").checked = true;
            }
        }
    </script>
</head>
<body>
    <input type="radio" id="test0" name="test" value="a" /> A<br />
    <input type="radio" id="test1" name="test" value="b" /> B<br />
    <input type="radio" id="test2" name="test" value="c" /> C<br />
    <input type="button" name="click" value="CHOOSE" onclick="javascript:chooseOne()" />
</body>

Thanks in Advance,
Spi

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1 Answer

  1. Editorial Team

    First of all, you should give all your radio buttons the same name, otherwise they will act as if they are independent buttons:

    <input type="radio" name="test" id="test0" value="a" /> A<br />
<input type="radio" name="test" id="test1" value="b" /> B<br />
<input type="radio" name="test" id="test2" value="c" /> C<br />

    I’m guessing this is also the source of your problem. Further, once you do this, you only need to set one radio button’s checked to true, that will automatically remove the selection from other buttons.

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