jQuery Radio Button Validation Example

<!DOCTYPE html>
<html>
<head>
    <title>Radio</title>
    <script type="text/javascript" src="jquery.js"></script>
    <script type="text/javascript">
        $(document).ready(function(){
            $("#button").click(function(){
                if($("#radio1").is(":checked")==false && $("#radio2").is(":checked")==false){
                alert("Select Gender");
                return false;
            }               
            });
        });
    </script>
</head>
<body>
<form id="form">
    <input type="radio" id="radio1" name="radio" value="Male">Male
    <input type="radio" id="radio2" name="radio" value="Female">Female<br>
    <input type="submit" id="button" value="Submit">
</form>
</body>
</html>

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