diff --git a/seaweb.py b/seaweb.py
index 4d90d8d..dffd8c0 100755
--- a/seaweb.py
+++ b/seaweb.py
@@ -509,6 +509,11 @@ class SeaGraph:
                 self.lastvalues[var] = (endtime, lastx)
 
     def w_graph(self, variables, time="-1800,0"):
+        """get given curves
+
+        variables: comma separated list of variables to get
+        time: comma separated time range (beg,end) values < 1 year are treated as relative to the current time
+        """
         time = [float(t) for t in time.split(',')]
         self.last_t = 0
         start, end, now = seagraph.get_abs_time(time + [0])
@@ -521,19 +526,24 @@ class SeaGraph:
         #self.time[0] = self.time[1]
         result = self.scanner.get_message(self.variables, self.time, show_empty=True)
         self.strip_future(result)
-        for var in ('treg.set.reg', 'mf'):
-            curve = result.get(var,[(0,0)])
-            print(var, curve[0][0] - now, curve[-1][0] - now, curve)
+        #for var in ('treg.set.reg', 'mf'):
+        #    curve = result.get(var,[(0,0)])
+        #    print(var, curve[0][0] - now, curve[-1][0] - now, curve)
         self.complete_to_end(result, end)
         self.time[0] = self.time[1]
         # reduction not yet implemented
         return dict(type='graph-draw', reduced=False, graph=result)
 
     def w_gettime(self, time):
+        """parse time (using server time)
+        time: comma separated time range (beg,end) values < 1 year are treated as relative to the current time
+        """
         time = [float(t) for t in time.split(',')]
         return dict(type='time', time= seagraph.get_abs_time(time))
 
     def w_getvars(self, time):
+        """get the curves available at given time (unix timestamp as string)
+        """
         time = [float(t) for t in time.split(',')]
         scanner = seagraph.VarsScanner(instrument.logger_dir, instrument.test_day)
         result = dict(type='var_list')
@@ -541,6 +551,7 @@ class SeaGraph:
         return result
 
     def w_updategraph(self):
+        """update live values""
         logging.info("UPD GRAPH %d", self.livemode)
         if self.livemode == self.HISTORICAL:
             return dict(type='accept-graph', live=False)