AJAX demo, customers template

<?php
/*
Template Name: Customers
*/


get_header(); ?>

        <div id="primary">
            <div id="content" role="main">

                <?php while ( have_posts() ) : the_post(); ?>

                    <?php get_template_part( 'content', 'page' ); ?>

                    <?php

                    if (is_user_logged_in()):?>

                        <form type="post" action="" id="newCustomerForm">

                            <label for="name">Name:</label>
                            <input name="name" type="text" />

                            <label for="email">Email:</label>
                            <input name="email" type="text" />

                            <label for="phone">Phone:</label>
                            <input name="phone" type="text" />

                            <label for="address">Address:</label>
                            <input name="address" type="text" />

                            <input type="hidden" name="action" value="addCustomer"/>
                            <input type="submit">
                        </form>
                        <br/><br/>
                        <div id="feedback"></div>
                        <br/><br/>


                    <?php
                        global $wpdb;
                        $customers = $wpdb->get_results("SELECT * FROM customers;");

                        echo "<table>";
                        foreach($customers as $customer){
                            echo "<tr>";
                            echo "<td>".$customer->name."</td>";
                            echo "<td>".$customer->email."</td>";
                            echo "<td>".$customer->phone."</td>";
                            echo "<td>".$customer->address."</td>";
                            echo "</tr>";
                        }
                        echo "</table>";
                    else:
                        echo "Sorry, only registered users can view this information";
                    endif;

                    ?>

                    <script type="text/javascript">
                        jQuery('#newCustomerForm').submit(ajaxSubmit);

                        function ajaxSubmit(){

                            var newCustomerForm = jQuery(this).serialize();

                            jQuery.ajax({
                                type:"POST",
                                url: "/wp-admin/admin-ajax.php",
                                data: newCustomerForm,
                                success:function(data){
                                    jQuery("#feedback").html(data);
                                },
                                error: function(errorThrown){
                                    alert(errorThrown);
                                }
                            });

                            return false;
                        }
                    </script>



                <?php endwhile; // end of the loop. ?>

            </div><!-- #content -->
        </div><!-- #primary -->

<?php get_footer(); ?>