Get value of radio button using jQuery

...

<input type="radio" name="age" value="10" />

<input type="radio" name="age" value="20" checked="checked" />

<input type="radio" name="age" value="30" />

...

 

//javascript code

 

<script type="text/javascript">

<!--

    // displays the selected radio button in an alert box

    alert($('input[name=age]:checked').val())

-->

 

var age = $("input[name='age']:checked").val(); 

alert(age);

</script>