/* (...) */
    // Add a delete button
    $title = JText::_('Delete');
    $dhtml = "<a href=\"#\" onclick=\"MediaManager.submit('folder.delete')\"
      class=\"toolbar\">
                <span class=\"icon-32-delete\" title=\"$title\"
                  type=\"Custom\"></span>
                $title</a>";
    $bar->appendButton( 'Custom', $dhtml, 'delete' );
    /* (...) */ 

/* (...) */
    // Add a Unzip button
    $title = JText::_('Unzip');
    $dhtml = "<a href=\"#\" onclick=\"MediaManager.submit('folder.unzip')\"
      class=\"toolbar\">
                <span class=\"icon-32-unarchive\" title=\"$title\"
                  type=\"Custom\"></span>
                $title</a>";
    $bar->appendButton( 'Custom', $dhtml, 'unzip' );
    /* (...) */

	  function delete()

	    {

	        global $mainframe;

	

	        JRequest::checkToken('request') or jexit( 'Invalid Token' );

	

	        // Set FTP credentials, if given

	        jimport('joomla.client.helper');

	        JClientHelper::setCredentialsFromRequest('ftp');

	

	        // Get some data from the request

	        $tmpl    = JRequest::getCmd( 'tmpl' );

	        $paths    = JRequest::getVar( 'rm', array(), '', 'array' );

	        $folder = JRequest::getVar( 'folder', '', '', 'path');

	

	        // Initialize variables

	        $msg = array();

	        $ret = true;

	

	        if (count($paths)) {

	            foreach ($paths as $path)

	            {

	                if ($path !== JFile::makeSafe($path)) {

	                    JError::raiseWarning(100, JText::_('Unable to delete:').htmlspecialchars($path, ENT_COMPAT, 'UTF-8').' '.JText::_('WARNDIRNAME'));

	                    continue;

	                }

	

	                $fullPath = JPath::clean(COM_MEDIA_BASE.DS.$folder.DS.$path);

	                if (is_file($fullPath)) {

	                    $ret |= !JFile::delete($fullPath);

	                } else if (is_dir($fullPath)) {

	                    $files = JFolder::files($fullPath, '.', true);

	                    $canDelete = true;

	                    foreach ($files as $file) {

	                        if ($file != 'index.html') {

	                            $canDelete = false;

	                        }

	                    }

	                    if ($canDelete) {

	                        $ret |= !JFolder::delete($fullPath);

	                    } else {

	                        JError::raiseWarning(100, JText::_('Unable to delete:').$fullPath.' '.JText::_('Not Empty!'));

	                    }

	                }

	            }

	        }

	        if ($tmpl == 'component') {

	            // We are inside the iframe

	            $mainframe->redirect('index.php?option=com_media&view=mediaList&folder='.$folder.'&tmpl=component');

	        } else {

	            $mainframe->redirect('index.php?option=com_media&folder='.$folder);

	        }

	    }