sharepoint select

sharepoint select

Sharepoint select is generating a select like below

<select id="Vehicle_x0020_Registration_x0020_ecd4a357-d82d-4697-9173-4c98365d986a_$LookupField" title="Vehicle Registration Number 1">
<option selected="selected" value="0">(None)</option>
<option value="4">00D37860</option>
<option value="2">BT11WGN</option>
<option value="3">BU14FJN</option>
<option value="1">PO63VNC</option>
</select>

I tried using JQ like below but it doesn't work. Shortening select id does work.

$('select#Vehicle_x0020_Registration_x0020_ecd4a357-d82d-4697-9173-4c98365d986a_$LookupField').find('option').each(function() {
    alert($(this).val());
});