Set Random Select Value
Use javascript to set a random select option.
HTML
<select id="colorselector">
<option value=""></option>
<option value="red">Red</option>
<option value="green">Green</option>
<option value="blue">Blue</option>
</select>
<button id="rndMz">Randomize!</button>
JavaScript
//function randomize(){
// $("#colorselector").val("red");
//}
$('#rndMz').click(function(){
$('#colorselector').val('red').trigger('change');
})