/**
  * Display header
  */
 protected function displayHeader()
 {
     $name = $this->Plugin instanceof PluginTool ? $this->Plugin->getWindowLink() : $this->Plugin->name();
     $Links = array();
     $Links[] = array('tag' => Ajax::window('<a href="' . ConfigTabPlugins::getExternalUrl() . '">' . __('back to overview') . '</a>'));
     echo '<div class="panel-heading">';
     echo '<div class="panel-menu">';
     echo Ajax::toolbarNavigation($Links);
     echo '</div>';
     echo '<h1>' . __('Plugin configuration') . ': ' . $name . '</h1>';
     echo '</div>';
 }
<?php

/**
 * File for uninstalling plugins.
 * Call:   call.Plugin.uninstall.php?key=
 */
require '../inc/class.Frontend.php';
$Pluginkey = filter_input(INPUT_GET, 'key');
$Frontend = new Frontend();
$Installer = new PluginInstaller($Pluginkey);
echo '<h1>' . __('Uninstall') . ' ' . $Pluginkey . '</h1>';
if ($Installer->uninstall()) {
    echo HTML::okay(__('The plugin has been uninstalled.'));
    PluginFactory::clearCache();
    Ajax::setReloadFlag(Ajax::$RELOAD_ALL);
    echo Ajax::getReloadCommand();
} else {
    echo HTML::error(__('There was a problem, the plugin could not be uninstalled.'));
}
echo '<ul class="blocklist">';
echo '<li>';
echo Ajax::window('<a href="' . ConfigTabPlugins::getExternalUrl() . '">' . Icon::$TABLE . ' ' . __('back to list') . '</a>');
echo '</li>';
echo '</ul>';