How to identify when select option was selected (not necessarily changed)?

The following code displays the new selected value if it is different from the current value:

HTML:

<select>
    <option value='123'>123</option>
    <option value='456'>456</option>
    <option value='789'>789</option>
</select>

JS:

$(function() {
    $('select').change(function() { alert($(this).val()); });
});

I would like to display the value w开发者_StackOverflow中文版henever an option selected (even if it is the currently selected value).

How could I achieve this ?

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Hook on the click event. It'll be a bit more often fired, but that's the best you can get.