diff --git a/chrome/content/vimperator/commands.js b/chrome/content/vimperator/commands.js
index 674328c5..db25bd7d 100644
--- a/chrome/content/vimperator/commands.js
+++ b/chrome/content/vimperator/commands.js
@@ -1258,30 +1258,6 @@ String.prototype.toURLArray = function()
     return urls;
 }
 
-/* returns true if the currently loaded URI is
- * a directory or false if it is a file
- */
-function isDirectory(url)
-{
-    if (url.match(/^file:\/\//) || url.match(/^\//))
-    {
-        var stripedFilename = url.replace(/^(file:\/\/)?(.*)/, "$2");
-        var file = vimperator.fopen(stripedFilename, '<');
-        if (!file)
-            return false;
-
-        if (file.localFile.isDirectory())
-            return true;
-        else
-            return false;
-    }
-    // for all other locations just check if the URL ends with /
-    if (url.match(/\/$/))
-        return true;
-    else
-        return false;
-}
-
 /////////////////////////////////////////////////////////////////////}}}
 // misc helper functions ///////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////{{{
diff --git a/chrome/content/vimperator/mappings.js b/chrome/content/vimperator/mappings.js
index 069cfdcd..fcf8d287 100644
--- a/chrome/content/vimperator/mappings.js
+++ b/chrome/content/vimperator/mappings.js
@@ -759,6 +759,26 @@ function Mappings() //{{{
             flags: Mappings.flags.COUNT
         }
     ));
+    function isDirectory(url)
+    {
+        if (url.match(/^file:\/\//) || url.match(/^\//))
+        {
+            var stripedFilename = url.replace(/^(file:\/\/)?(.*)/, "$2");
+            var file = vimperator.fopen(stripedFilename, '<');
+            if (!file)
+                return false;
+
+            if (file.localFile.isDirectory())
+                return true;
+            else
+                return false;
+        }
+        // for all other locations just check if the URL ends with /
+        if (url.match(/\/$/))
+            return true;
+        else
+            return false;
+    }
     addDefaultMap(new Map(vimperator.modes.NORMAL, ["gu", "<BS>"],
         function(count)
         {