indoor racing improvements

more descriptive form labels, new race set to organizer time zone,
link back to race from workout view

rowers/models.py

@@ -2000,9 +2000,20 @@ class IndoorVirtualRaceForm(ModelForm):
             'evaluation_closure':AdminSplitDateTime(),
             }
 
+        labels = {
+            'sessionunit': 'Meters or minutes',
+            'sessionvalue': 'How far or how long'
+            }
+
+
     def __init__(self,*args,**kwargs):
+        timezone = kwargs.pop('timezone',None)
         super(IndoorVirtualRaceForm, self).__init__(*args, **kwargs)
         self.fields['sessionunit'].choices = [('min','minutes'),('m','meters')]
+        self.fields['sessionvalue'].initial = 2000
+        self.fields['sessionunit'].initial = 'm'
+        if timezone:
+            self.fields['timezone'].initial = timezone
 
     def clean(self):
         cd = self.cleaned_data