SO jQuery Fiddle
Test Fiddle mainly for SO Questions jQuery 1.4.3, UI 1.8.5
by Nick Craver
HTML
<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.5/themes/ui-lightness/jquery-ui.css">
<select class="selecturl">
<optgroup label="Fruit">
<option value="/something/167/remote">Apple</option>
<option selected="" value="/something/168/remote">Oranges</option>
<option value="/something/169/remote">Bananas</option>
<option value="/something/170/remote">Carots</option>
</optgroup>
</select>
JavaScript
$('.selecturl').change(function() {
console.log($(this).val()); //gets the value
console.log($(this).find(':selected').text()); //gets the text
});