diff --git a/scripts.js b/scripts.js
index 1f94630..51da49f 100644
--- a/scripts.js
+++ b/scripts.js
@@ -26,7 +26,7 @@
     if (menubar.length == 1 && p_main_menu!="disabled") {
       menuswitcher.html('<div class="switchArrow">&nbsp;</div>');
 
-      if (session_storage['page-menu'] == undefined && p_main_menu == 'off') {
+      if (session_storage['page-menu'] === undefined && p_main_menu == 'off') {
         session_storage['page-menu'] = 'hidden';
       }
 
diff --git a/scripts_pp.js b/scripts_pp.js
index 6accab0..f85570d 100644
--- a/scripts_pp.js
+++ b/scripts_pp.js
@@ -1,172 +1,172 @@
-(function() {
-  var session_storage = window.sessionStorage || {};
-
-  var menubar=jQuery("#menubar"),
-      menuswitcher,
-      content=jQuery("#the_page > .content"),
-      pcontent=jQuery("#content"),
-      imageInfos=jQuery("#imageInfos"),
-      infoswitcher,
-      theImage=jQuery("#theImage"),
-      comments=jQuery("#thePicturePage #comments"),
-      comments_button,
-      commentsswitcher,
-      comments_add,
-      comments_top_offset = 0;
-
-  function hideMenu(delay) {
-    menubar.hide(delay);
-    menuswitcher.addClass("menuhidden").removeClass("menushown");
-    content.addClass("menuhidden").removeClass("menushown");
-    pcontent.addClass("menuhidden").removeClass("menushown");
-    session_storage['picture-menu'] = 'hidden';
-  }
-
-  function showMenu(delay) {
-    menubar.show(delay);
-    menuswitcher.addClass("menushown").removeClass("menuhidden");
-    content.addClass("menushown").removeClass("menuhidden");
-    pcontent.addClass("menushown").removeClass("menuhidden");
-    session_storage['picture-menu'] = 'visible';
-  }
-
-  function hideInfo(delay) {
-    imageInfos.hide(delay);
-    infoswitcher.addClass("infohidden").removeClass("infoshown");
-    theImage.addClass("infohidden").removeClass("infoshown");
-    session_storage['side-info'] = 'hidden';
-  }
-
-  function showInfo(delay) {
-    imageInfos.show(delay);
-    infoswitcher.addClass("infoshown").removeClass("infohidden");
-    theImage.addClass("infoshown").removeClass("infohidden");
-    session_storage['side-info'] = 'visible';
-  }
-
-  function commentsToggle() {
-    if (comments.hasClass("commentshidden")) {
-      comments.removeClass("commentshidden").addClass("commentsshown");
-      comments_button.addClass("comments_toggle_off").removeClass("comments_toggle_on");;
-      session_storage['comments'] = 'visible';
-      comments_top_offset = comments_add.offset().top - parseFloat(comments_add.css('marginTop').replace(/auto/, 0));
-    }
-    else {
-      comments.addClass("commentshidden").removeClass("commentsshown");
-      comments_button.addClass("comments_toggle_on").removeClass("comments_toggle_off");;
+(function() {
+  var session_storage = window.sessionStorage || {};
+
+  var menubar=jQuery("#menubar"),
+      menuswitcher,
+      content=jQuery("#the_page > .content"),
+      pcontent=jQuery("#content"),
+      imageInfos=jQuery("#imageInfos"),
+      infoswitcher,
+      theImage=jQuery("#theImage"),
+      comments=jQuery("#thePicturePage #comments"),
+      comments_button,
+      commentsswitcher,
+      comments_add,
+      comments_top_offset = 0;
+
+  function hideMenu(delay) {
+    menubar.hide(delay);
+    menuswitcher.addClass("menuhidden").removeClass("menushown");
+    content.addClass("menuhidden").removeClass("menushown");
+    pcontent.addClass("menuhidden").removeClass("menushown");
+    session_storage['picture-menu'] = 'hidden';
+  }
+
+  function showMenu(delay) {
+    menubar.show(delay);
+    menuswitcher.addClass("menushown").removeClass("menuhidden");
+    content.addClass("menushown").removeClass("menuhidden");
+    pcontent.addClass("menushown").removeClass("menuhidden");
+    session_storage['picture-menu'] = 'visible';
+  }
+
+  function hideInfo(delay) {
+    imageInfos.hide(delay);
+    infoswitcher.addClass("infohidden").removeClass("infoshown");
+    theImage.addClass("infohidden").removeClass("infoshown");
+    session_storage['side-info'] = 'hidden';
+  }
+
+  function showInfo(delay) {
+    imageInfos.show(delay);
+    infoswitcher.addClass("infoshown").removeClass("infohidden");
+    theImage.addClass("infoshown").removeClass("infohidden");
+    session_storage['side-info'] = 'visible';
+  }
+
+  function commentsToggle() {
+    if (comments.hasClass("commentshidden")) {
+      comments.removeClass("commentshidden").addClass("commentsshown");
+      comments_button.addClass("comments_toggle_off").removeClass("comments_toggle_on");
+      session_storage['comments'] = 'visible';
+      comments_top_offset = comments_add.offset().top - parseFloat(comments_add.css('marginTop').replace(/auto/, 0));
+    }
+    else {
+      comments.addClass("commentshidden").removeClass("commentsshown");
+      comments_button.addClass("comments_toggle_on").removeClass("comments_toggle_off");
       session_storage['comments'] = 'hidden';
-      comments_top_offset = 0;
-    }
-  }
-
-  jQuery(function(){
-    // side-menu show/hide
-    if (menubar.length == 1 && p_main_menu!="disabled") {
-      menuswitcher=jQuery("#menuSwitcher");
-
-      menuswitcher.html('<div class="switchArrow">&nbsp;</div>');
-
-      if (session_storage['picture-menu'] == undefined && p_main_menu == 'off') {
-        session_storage['picture-menu'] = 'hidden';
-      }
-
-      if (session_storage['picture-menu'] == 'hidden') {
-        hideMenu(0);
-      }
-      else {
-        showMenu(0);
-      }
-
-      menuswitcher.click(function(e){
-        if (menubar.is(":hidden")) {
-          showMenu(0);
-        }
-        else {
-          hideMenu(0);
-        }
-        e.preventDefault();
-      });
-    }
-
-    // info show/hide
-    if (imageInfos.length == 1 && p_pict_descr!="disabled") {
-      infoswitcher=jQuery("#infoSwitcher");
-
-      infoswitcher.html('<div class="switchArrow">&nbsp;</div>');
-
-      if (session_storage['side-info'] == undefined && p_pict_descr == 'off') {
-        session_storage['side-info'] = 'hidden';
-      }
-
-      if (session_storage['side-info'] == 'hidden') {
-        hideInfo(0);
-      }
-      else {
-        showInfo(0);
-      }
-
-      infoswitcher.click(function(e){
-        if (imageInfos.is(":hidden")) {
-          showInfo(0);
-        }
-        else {
-          hideInfo(0);
-        }
-        e.preventDefault();
-      });
-    }
-
-    // comments show/hide
-    if (comments.length == 1 && p_pict_comment!="disabled") {
-      commentsswitcher=jQuery("#commentsSwitcher");
-      comments_button=jQuery("#comments h3");
-      comments_add=jQuery('#commentAdd');
-
-      commentsswitcher.html('<div class="switchArrow">&nbsp;</div>');
-
-      if (comments_button.length == 0) {
-        jQuery("#addComment").before("<h3>Comments</h3>");
-        comments_button=jQuery("#comments h3");
-      }
-
-      if (session_storage['comments'] == undefined && p_pict_comment == 'off') {
-        session_storage['comments'] = 'hidden';
-      }
-
-      if (session_storage['comments'] == 'hidden') {
-        comments.addClass("commentshidden");
-        comments_button.addClass("comments_toggle comments_toggle_on");
-      }
-      else {
-        comments.addClass("commentsshown");
-        comments_button.addClass("comments_toggle comments_toggle_off");
-      }
-
-      comments_button.click(commentsToggle);
-      commentsswitcher.click(commentsToggle);
-
-      jQuery(window).scroll(function (event) {
-        if (comments_top_offset==0) return;
-
-        var y = jQuery(this).scrollTop();
-
-        if (y >= comments_top_offset) {
+      comments_top_offset = 0;
+    }
+  }
+
+  jQuery(function(){
+    // side-menu show/hide
+    if (menubar.length == 1 && p_main_menu!="disabled") {
+      menuswitcher=jQuery("#menuSwitcher");
+
+      menuswitcher.html('<div class="switchArrow">&nbsp;</div>');
+
+      if (session_storage['picture-menu'] === undefined && p_main_menu == 'off') {
+        session_storage['picture-menu'] = 'hidden';
+      }
+
+      if (session_storage['picture-menu'] == 'hidden') {
+        hideMenu(0);
+      }
+      else {
+        showMenu(0);
+      }
+
+      menuswitcher.click(function(e){
+        if (menubar.is(":hidden")) {
+          showMenu(0);
+        }
+        else {
+          hideMenu(0);
+        }
+        e.preventDefault();
+      });
+    }
+
+    // info show/hide
+    if (imageInfos.length == 1 && p_pict_descr!="disabled") {
+      infoswitcher=jQuery("#infoSwitcher");
+
+      infoswitcher.html('<div class="switchArrow">&nbsp;</div>');
+
+      if (session_storage['side-info'] === undefined && p_pict_descr == 'off') {
+        session_storage['side-info'] = 'hidden';
+      }
+
+      if (session_storage['side-info'] == 'hidden') {
+        hideInfo(0);
+      }
+      else {
+        showInfo(0);
+      }
+
+      infoswitcher.click(function(e){
+        if (imageInfos.is(":hidden")) {
+          showInfo(0);
+        }
+        else {
+          hideInfo(0);
+        }
+        e.preventDefault();
+      });
+    }
+
+    // comments show/hide
+    if (comments.length == 1 && p_pict_comment!="disabled") {
+      commentsswitcher=jQuery("#commentsSwitcher");
+      comments_button=jQuery("#comments h3");
+      comments_add=jQuery('#commentAdd');
+
+      commentsswitcher.html('<div class="switchArrow">&nbsp;</div>');
+
+      if (comments_button.length == 0) {
+        jQuery("#addComment").before("<h3>Comments</h3>");
+        comments_button=jQuery("#comments h3");
+      }
+
+      if (session_storage['comments'] === undefined && p_pict_comment == 'off') {
+        session_storage['comments'] = 'hidden';
+      }
+
+      if (session_storage['comments'] == 'hidden') {
+        comments.addClass("commentshidden");
+        comments_button.addClass("comments_toggle comments_toggle_on");
+      }
+      else {
+        comments.addClass("commentsshown");
+        comments_button.addClass("comments_toggle comments_toggle_off");
+      }
+
+      comments_button.click(commentsToggle);
+      commentsswitcher.click(commentsToggle);
+
+      jQuery(window).scroll(function (event) {
+        if (comments_top_offset==0) return;
+
+        var y = jQuery(this).scrollTop();
+
+        if (y >= comments_top_offset) {
           comments_add.css({
             'position': 'absolute',
             'top': y-comments.offset().top+10
-          });
-        }
-        else {
+          });
+        }
+        else {
           comments_add.css({
             'position': 'static',
             'top': 0
-          });
-        }
-      });
-
-      if (comments_add.is(":visible")) {
-        comments_top_offset = comments_add.offset().top - parseFloat(comments_add.css('marginTop').replace(/auto/, 0));
-      }
-    }
-  });
-}());
\ No newline at end of file
+          });
+        }
+      });
+
+      if (comments_add.is(":visible")) {
+        comments_top_offset = comments_add.offset().top - parseFloat(comments_add.css('marginTop').replace(/auto/, 0));
+      }
+    }
+  });
+}());