/**
         * Callback function for the Migration Files to Transfer meta box.
         *
         * @param $wpmove_options Plugin settings array
         * @return void
         */
        function metabox_ma_migrate_filetree()
        {
            ?>
			<p id="wpmove_file_tree_buttons" style="display: none;">
				<input type="button" name="wpmove_file_tree_check_all" id="wpmove_file_tree_check_all" class="button-secondary" value="<?php 
            _e('Select All', 'WPMove');
            ?>
" />
				<input type="button" name="wpmove_file_tree_uncheck_all" id="wpmove_file_tree_uncheck_all" class="button-secondary" value="<?php 
            _e('Unselect All', 'WPMove');
            ?>
" />
				<input type="button" name="wpmove_toggle_change_domain_name" id="wpmove_toggle_change_domain_name" class="button-secondary" value="<?php 
            _e('Change Domain Name', 'WPMove');
            ?>
" style="display:none;" />
			</p>
			<blockquote>
				<?php 
            // To use as a file ID
            $i = 0;
            // List all of the files inside the main directory
            $abspath = substr(ABSPATH, 0, strlen(ABSPATH) - 1);
            $files = wpmove_generate_file_tree($abspath, FALSE, array(WPMOVE_DIR, WPMOVE_BACKUP_DIR, WPMOVE_OLD_BACKUP_DIR));
            ?>
				<div id="wpmove_file_tree" style="display:none;">
					<ul>
						<?php 
            wpmove_display_file_tree($files);
            ?>
					</ul>
				</div>
				<div id="wpmove_file_tree_loading" style="display:none;">
					<?php 
            echo '<img src="' . WPMOVE_URL . '/libs/js/themes/default/throbber.gif" alt="' . __('Loading...', 'WPMove') . '" style="vertical-align:middle;" /> <strong>' . __('Loading...', 'WPMove') . '</strong>';
            ?>
				</div>
				<noscript>
					<?php 
            // Prepare the file list
            $files = wpmove_list_all_files($abspath, FALSE, array(WPMOVE_DIR, WPMOVE_BACKUP_DIR, WPMOVE_OLD_BACKUP_DIR));
            // Display each file with a checked checkbox
            foreach ($files as $file) {
                if (is_file($file)) {
                    $short_path = str_replace(ABSPATH, '', $file);
                    echo '<input id="file-' . $i . '" name="files[]" type="checkbox" value="' . $file . '" checked> <label for="file-' . $i++ . '"><span class="code">' . $short_path . '</span></label><br>';
                }
            }
            ?>
				</noscript>
			</blockquote>
			<?php 
        }
/**
 * Displays the file tree using the given array of files
 *
 * @param 	array	$files	Array of files in a tree form
 * @return	integer $i		Updates counter to make sure every item has a unique ID
 */
function wpmove_display_file_tree($files, $i = 0)
{
    foreach ($files as $file) {
        if (!is_array($file)) {
            if (is_file($file)) {
                echo '<li id="file-' . $i++ . '" rel="file"><a href="#" title="' . $file . '">' . basename($file) . '</a></li>';
            } elseif (count(@scandir($file)) > 2) {
                echo '<li id="dir-' . $i++ . '" rel="directory"><a href="#" title="">' . basename($file) . '</a><ul>';
            } else {
                echo '<li id="dir-' . $i++ . '" rel="directory"><a href="#" title="' . $file . '">' . basename($file) . '</a><ul>';
            }
        } else {
            $i = wpmove_display_file_tree($file, $i);
        }
    }
    echo '</ul></li>';
    return $i;
}