diff --git a/sai/page/default_page.php b/sai/page/default_page.php
index a18b917..620385a 100644
--- a/sai/page/default_page.php
+++ b/sai/page/default_page.php
@@ -39,9 +39,7 @@ class default_page extends \SYSTEM\PAGE\Page {
 
     private static function js(){
         $result = '<script src="'.\SYSTEM\WEBPATH(new \SYSTEM\PSAI(),'page/js/libs/jquery.min.js').'" type="text/javascript"></script>'.
-                  '<script src="'.\SYSTEM\WEBPATH(new \SYSTEM\PSAI(),'page/js/libs/jquery.matchHeight.js').'" type="text/javascript"></script>'.
                   '<script src="'.\SYSTEM\WEBPATH(new \SYSTEM\PSAI(),'page/js/libs/bootstrap.min.js').'" type="text/javascript"></script>'.
-                  '<script src="'.\SYSTEM\WEBPATH(new \SYSTEM\PSAI(),'page/js/libs/collapse.js').'" type="text/javascript"></script>'.
                   '<script type="text/javascript" language="JavaScript" src="./sai.php?call=files&amp;cat=sys&amp;id=system.js"></script>'.
                   '<script src="'.\SYSTEM\WEBPATH(new \SYSTEM\PSAI(),'page/js/sai.js').'" type="text/javascript"></script>'.
                   '<script src="https://www.google.com/jsapi" type="text/javascript"></script>'.
diff --git a/sai/page/js/libs/bootstrap.min.js b/sai/page/js/libs/_bootstrap.min.js
similarity index 100%
rename from sai/page/js/libs/bootstrap.min.js
rename to sai/page/js/libs/_bootstrap.min.js
diff --git a/sai/page/js/sai.js b/sai/page/js/sai.js
index b271931..7f481d1 100644
--- a/sai/page/js/sai.js
+++ b/sai/page/js/sai.js
@@ -1,19 +1,9 @@
 $(document).ready(function() {
-    new SYSTEM('./sai.php',42,'start',sys_hashchange);
-    $('#sai_navbar ul li a, #project_navbar ul li a').click(function () {
-        $('#sai_navbar li, #project_navbar li').each(function(){
-            $(this).removeClass('active');});
-        $(this).parent().addClass('active');
-        system.reload($(this).attr('href'));
-    });
-    
+    new SYSTEM('./sai.php',42,'start',sys_hashchange);    
     $('.brand').click(function(){
         location.reload();
     }); 
-    $(".navbar-toggle").click(function(){
-            $('#navbar-collapse-1').collapse('toggle');
-    });
-    $(document).on('ready', autocollapse);
+    //autocollapse();
     $(window).on('resize', autocollapse);
 });
 
@@ -27,6 +17,7 @@ function sys_hashchange(state){
 }
 
 function autocollapse() {
+    $('.navbar-collapse').collapse('show');
     var navbar = $('#sys_autocollapse');
     navbar.removeClass('collapsed'); // set standart view
     if(navbar.innerHeight() > 50) // check if we've got 2 lines
diff --git a/sai/page/tpl/sai.tpl b/sai/page/tpl/sai.tpl
index 316c2ad..9fbb9f2 100644
--- a/sai/page/tpl/sai.tpl
+++ b/sai/page/tpl/sai.tpl
@@ -12,8 +12,7 @@
         <nav id="sys_autocollapse" class="navbar navbar-default" role="navigation">
             <div class="container-fluid">  
                 <div class="navbar-header">
-                    <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#navbar-collapse-1">
-                      <span class="sr-only">Toggle navigation</span>
+                    <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navHeaderCollapse">
                       <span class="icon-bar"></span>
                       <span class="icon-bar"></span>
                       <span class="icon-bar"></span>
@@ -21,7 +20,7 @@
                     <a id="sai_brand" class="navbar-brand" href="#!start">SAI</a>
                 </div>
                  <!-- Collect the nav links, forms, and other content for toggling -->
-                <div id="navbar-collapse-1" class="collapse navbar-collapse">
+                <div class="collapse navbar-collapse navHeaderCollapse">
                     <ul class="nav navbar-nav">
                         ${menu_start}
                         ${menu_sys}