jquery option selected value
<select id="myselect">
<option value="1">Mr</option>
<option value="2" selected="selected">Mrs</option>
<option value="3">Ms</option>
<option value="4">Dr</option>
<option value="5">Prof</option>
</select>
<script>
alert($( "#myselect" ).val()); //alert '2'
//OR
alert($( "#myselect option:selected" ).attr('value')); //alert '2'
//Use this if you want to get the label and not the value
alert($( "#myselect option:selected" ).text()); //alert 'Mrs'
</script>