Translations:Manual:Interface/Sidebar/30/en

The sidebar can be fully customized by implementing JavaScript or Cascading Style Sheets, or by editing the PHP files directly. Before using these methods, note that:
 * JavaScript is fragile: it will not work for users with JavaScript disabled, and scripts frequently fail in different browsers or skins.
 * Editing the PHP files can easily cause unexpected errors, and your changes will be lost in the next update unless you manually change the new files.