+    public void toggleOffSelectAll(MenuItem item){
+        selectAllToggled = false;
+        item.setIcon(android.R.drawable.checkbox_off_background);
+        mFileListFragment.deselectAll();
+    }
+    public void toggleOffSelectAll(){
+        MenuItem item = menu.findItem(R.id.actionbar_select_all);
+        toggleOffSelectAll(item);
+    }
+    public void toggleOnSelectAll(MenuItem item){
+        selectAllToggled = true;
+        item.setIcon(android.R.drawable.checkbox_on_background);        
+        mFileListFragment.selectAll();
+    }