submit.js

$(document).ready(function() {

    $('.js_form_mail').submit(function( event ) {
        if ($(this)[0].checkValidity()) {
            formx = $(this).serialize();    
            formxa = $(this).serializeArray(); 
            $.ajax({
                type: "POST",
                url:  themePath+"/obr.php",
                data: formx,
                success: function(msg) {
                    write_admin(formxa);
                    $.fancybox.close();
                    $.fancybox.open({src  : '#modal_success'})
                }
            });
        }
    });



    function write_admin(fordata){
        fordata.push({name: 'action', value: 'order_do'});
        $.ajax({
            url: '/wp-admin/admin-ajax.php',
            data: fordata,
            type: 'POST',
            success: function(data) {}
        });
    }

 });