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Asked: 2026-05-28T03:24:05+00:00

Here is a form element I have. <select id=state name=state style=width: 212px;> <option value=nsw>New

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Here is a form element I have.

<select id="state" name="state" style="width: 212px;">
<option value="nsw">New South Wales</option>
<option value="qld">Queensland</option>
<option value="vic">Victoria</option>
<option value="nt">Northern Territory</option>
<option value="tas">Tasmania</option>
<option value="sa">South Australia</option>
<option value="wa">Western Australia</option>
<option value="act">Australian Capital Territory</option>
<option value="notinoz">Not in Australia</option>
 </select>

What I want to do is below this add another select box element , if user chooses “not in Australia” in the options above.
I am really after the cleanest lightest code possbile.

I am presuming we create a div and set visibility:hidden just not sure how to trigger it.

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1 Answer

  1. Editorial Team
    <!doctype html>
<head>

    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js"></script>

    <script>
        $(document).ready(function (){
            $("#state").change(function() {
                // foo is the id of the other select box 
                if ($(this).val() != "notinoz") {
                    $("#foo").show();
                }else{
                    $("#foo").hide();
                } 
            });
        });
    </script>

</head>


<body>
    <p>
        <select id="state" name="state" style="width: 212px;">
            <option value="nsw">New South Wales</option>
            <option value="qld">Queensland</option>
            <option value="vic">Victoria</option>
            <option value="nt">Northern Territory</option>
            <option value="tas">Tasmania</option>
            <option value="sa">South Australia</option>
            <option value="wa">Western Australia</option>
            <option value="act">Australian Capital Territory</option>
            <option value="notinoz">Not in Australia</option>
        </select>
    </p>

    <p id="foo" style="display:none;">
        <select style="width: 212px;>
            <option value="item1">Item</option>
            <option value="item2">Item</option>
            <option value="item3">Item</option>
        </select>
    </p>

</body>
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