diff --git a/README.md b/README.md
old mode 100644
new mode 100755
diff --git a/classes/timetable.php b/classes/timetable.php
index 5573ddd..8990cfb 100755
--- a/classes/timetable.php
+++ b/classes/timetable.php
@@ -114,7 +114,7 @@ class timetable {
       $this->monday->sub(new \DateInterval("P".($dayofweek-1)."D"));
     }
 
-    $this->week = $this->monday->format("W");
+    $this->week = intval($this->monday->format("W"));
     $this->lastday = new \DateTime($this->monday->format('Y-m-d\TH:i:sP'));
     $this->lastday->add(new \DateInterval("P".($this->numdayweek-1)."D"));
 
diff --git a/doc/.gitkeep b/doc/.gitkeep
old mode 100644
new mode 100755
diff --git a/doc/timetable_search.png b/doc/timetable_search.png
old mode 100644
new mode 100755
diff --git a/doc/timetable_search_small.png b/doc/timetable_search_small.png
old mode 100644
new mode 100755
diff --git a/doc/timetable_searchresults.png b/doc/timetable_searchresults.png
old mode 100644
new mode 100755
diff --git a/doc/timetable_searchresults_small.png b/doc/timetable_searchresults_small.png
old mode 100644
new mode 100755