diff -r 8f14ec7ffd07 -r a4f39dc4db6a eskp.py
--- a/eskp.py	Fri Mar 11 09:47:55 2016 +0100
+++ b/eskp.py	Fri Mar 11 10:00:23 2016 +0100
@@ -24,6 +24,7 @@
 # We need the path of this file to find templates to translate
 ESKP_PATH = os.path.dirname(os.path.abspath(__file__))
 logging.basicConfig(filename=os.path.join(ESKP_PATH, 'eskp-app.log'), level=logging.DEBUG)
+FILES= os.listdir(os.path.join(ESKP_PATH, 'static/images/uvmap'))
 
 app = Flask(__name__)
 babel = Babel(app)
@@ -49,8 +50,7 @@
 
 
 def get_newest_date():
-    files = os.listdir(os.path.join(ESKP_PATH, 'static/images/uvmap'))
-    getdates = get_valid_dates(files)
+    getdates = get_valid_dates(FILES)
     newest_date = getdates[-1]
 
     return newest_date
@@ -105,9 +105,7 @@
 
 
 def get_o3lossuvmap_dates(date_show):
-
-    files = os.listdir(os.path.join(ESKP_PATH,'static/images/uvmap'))
-    dates = get_valid_dates(files)
+    dates = get_valid_dates(FILES)
     ndates = len(dates)
     ind = dates.index(date_show)
     if ind ==0 :