/**
  * Get the url pointing to the wiki's index file. In short: The main page
  * for this wiki, eg. http://sub.domain.com/wiki/index.php
  * @return string homeURL
  */
 static function getHomeURL()
 {
     global $wgScriptExtension;
     $linkHome = WebFunctions::getWikiURL() . '/index' . $wgScriptExtension;
     return $linkHome;
 }