$portfolioextrafields_1_metabox = array(
    'id' => 'portfolioextrafields',
    'title' => 'Portfolio Extra Fields',
    'page' => array('portfolio'),
    'context' => 'normal',
    'priority' => 'high',
    'fields' => array(


                array(
                    'name'          => 'Employee Name',
                    'desc'          => 'Enter the name of the employee',
                    'id'                => 'nick_empname',
                    'class'             => 'nick_empname',
                    'type'          => 'text',
                    'rich_editor'   => 0,
                    'max'           => 0                ),

                array(
                    'name'          => 'Employee Lines',
                    'desc'          => 'Enter the lines separated by <br/>',
                    'id'                => 'nick_empline',
                    'class'             => 'nick_empline',
                    'type'          => 'text',
                    'rich_editor'   => 0,
                    'max'           => 0                ),
                )
);

add_action('admin_menu', 'nick_add_portfolioextrafields_1_meta_box');
function nick_add_portfolioextrafields_1_meta_box() {

    global $portfolioextrafields_1_metabox;

    foreach($portfolioextrafields_1_metabox['page'] as $page) {
        add_meta_box($portfolioextrafields_1_metabox['id'], $portfolioextrafields_1_metabox['title'], 'nick_show_portfolioextrafields_1_box', $page, 'normal', 'high', $portfolioextrafields_1_metabox);
    }
}

// function to show meta boxes
function nick_show_portfolioextrafields_1_box() {
    global $post;
    global $portfolioextrafields_1_metabox;
    global $nick_prefix;
    global $wp_version;

    // Use nonce for verification
    echo '<input type="hidden" name="nick_portfolioextrafields_1_meta_box_nonce" value="', wp_create_nonce(basename(__FILE__)), '" />';

    echo '<table class="form-table">';

    foreach ($portfolioextrafields_1_metabox['fields'] as $field) {
        // get current post meta data

        $meta = get_post_meta($post->ID, $field['id'], true);

        echo '<tr>',
                '<th style="width:20%"><label for="', $field['id'], '">', stripslashes($field['name']), '</label></th>',
                '<td class="nick_field_type_' . str_replace(' ', '_', $field['type']) . '">';
        switch ($field['type']) {
            case 'text':
            if (!isset($field['std'])) {$ttemp_string = "";} else {$ttemp_string = $field['std'];}
                echo '<input type="text" name="', $field['id'], '" id="', $field['id'], '" value="', $meta ? $meta : $ttemp_string, '" size="30" style="width:97%" /><br/>', '', stripslashes($field['desc']);
                break;



        }
        echo     '<td>',
            '</tr>';
    }

    echo '</table>';
}

// Save data from meta box
add_action('save_post', 'nick_portfolioextrafields_1_save');
function nick_portfolioextrafields_1_save($post_id) {
    global $post;
    global $portfolioextrafields_1_metabox;

    // verify nonce
    if ( ! isset( $_POST['nick_portfolioextrafields_1_meta_box_nonce'] ) || ! wp_verify_nonce($_POST['nick_portfolioextrafields_1_meta_box_nonce'], basename(__FILE__))) {
        return $post_id;
    }

    // check autosave
    if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) {
        return $post_id;
    }

    // check permissions
    if ('page' == $_POST['post_type']) {
        if (!current_user_can('edit_page', $post_id)) {
            return $post_id;
        }
    } elseif (!current_user_can('edit_post', $post_id)) {
        return $post_id;
    }

    foreach ($portfolioextrafields_1_metabox['fields'] as $field) {

        $old = get_post_meta($post_id, $field['id'], true);
        $new = $_POST[$field['id']];

        if ($new && $new != $old) {
            if($field['type'] == 'date') {
                $new = nick_format_date($new);
                update_post_meta($post_id, $field['id'], $new);
            } else {
                if(is_string($new)) {
                    $new = $new;
                }
                update_post_meta($post_id, $field['id'], $new);


            }
        } elseif ('' == $new && $old) {
            delete_post_meta($post_id, $field['id'], $old);
        }
    }
}


function nick_export_ui_scripts() {

    global $nick_options, $post;
    ?>
    <script type="text/javascript">
            jQuery(document).ready(function($)
            {



                // add new repeatable field
                $(".nick_add_new_field").on('click', function() {
                    var field = $(this).closest('td').find("div.nick_repeatable_wrapper:last").clone(true);
                    var fieldLocation = $(this).closest('td').find('div.nick_repeatable_wrapper:last');

                    // set the new field val to blank
                    $('input', field).val("");
                    field.insertAfter(fieldLocation, $(this).closest('td'));

                    return false;
                });



                // remove repeatable field
                $('.nick_remove_repeatable').on('click', function(e) {
                    e.preventDefault();
                    var field = $(this).parent();
                    $('input', field).val("");
                    field.remove();
                    return false;
                });

            });
      </script>
    <?php
}