diff --git a/views/bootstrap/class.Bootstrap.php b/views/bootstrap/class.Bootstrap.php
index 91b1c8c60..16d374fe6 100644
--- a/views/bootstrap/class.Bootstrap.php
+++ b/views/bootstrap/class.Bootstrap.php
@@ -380,13 +380,18 @@ background-image: linear-gradient(to bottom, #882222, #111111);;
 			}
 
 			echo "   <ul class=\"nav\">\n";
-	//		echo "    <li id=\"first\"><a href=\"../out/out.ViewFolder.php?folderid=".$this->params['rootfolderid']."\">".getMLText("content")."</a></li>\n";
-	//		echo "    <li><a href=\"../out/out.SearchForm.php?folderid=".$this->params['rootfolderid']."\">".getMLText("search")."</a></li>\n";
-			if ($this->params['enablecalendar']) echo "    <li><a href=\"../out/out.Calendar.php?mode=".$this->params['calendardefaultview']."\">".getMLText("calendar")."</a></li>\n";
-			if ($this->params['user']->isAdmin()) echo "    <li><a href=\"../out/out.AdminTools.php\">".getMLText("admin_tools")."</a></li>\n";
+			$menuitems = array();
+			if ($this->params['enablecalendar']) $menuitems['calendar'] = array('link'=>'../out/out.Calendar.php?mode='.$this->params['calendardefaultview'], 'label'=>"calendar");
+			if ($this->params['user']->isAdmin()) $menuitems['admintools'] = array('link'=>'../out/out.AdminTools.php', 'label'=>"admin_tools");
 			if($this->params['enablehelp']) {
-			$tmp = explode('.', basename($_SERVER['SCRIPT_FILENAME']));
-			echo "    <li><a href=\"../out/out.Help.php?context=".$tmp[1]."\">".getMLText("help")."</a></li>\n";
+				$tmp = explode('.', basename($_SERVER['SCRIPT_FILENAME']));
+				$menuitems['help'] = array('link'=>'../out/out.Help.php?context='.$tmp[1], 'label'=>"help");
+			}
+			/* Check if hook exists because otherwise callHook() will override $menuitems */
+			if($this->hasHook('globalNavigationBar'))
+				$menuitems = $this->callHook('globalNavigationBar', $menuitems);
+			foreach($menuitems as $menuitem) {
+				echo "<li><a href=\"".$menuitem['link']."\"".(isset($menuitem['target']) ? ' target="'.$menuitem['target'].'"' : '').">".getMLText($menuitem['label'])."</a></li>";
 			}
 			echo "   </ul>\n";
 			echo "     <form action=\"../out/out.Search.php\" class=\"form-inline navbar-search pull-left\" autocomplete=\"off\">";