JAVASCRIPT

reset a select option jquery

$('#baba').prop('selectedIndex',0);

jquery select clear options

$('#mySelect')
    .find('option')
    .remove()
    .end()
    .append('<option value="whatever">text</option>')
    .val('whatever')
;

reset select form jquery

 $('select').each( function() {
        $(this).val( $(this).find("option[selected]").val() );
    });

reset select option jquery

$('ClassOrIDName').prop('selectedIndex',0); 
// this works perfectly. just put this in any action and your 1st option should be 'select one item' type