[OSM-talk-be] Opening_hours How to contact maker of POI map

[Jakka]

http://openingh.openstreetmap.de/?zoom=9&lat=50.95311&lon=4.58209&layers=B0T&filter=none&tags=opening_hours

I would like that a search box is present. Like de standard in 
http://www.openstreetmap.org/#map=8/50.656/4.897
Now wile scrolling to the correct place it is trying to retrieve all 
data from server....

Question: How to contact maker of map?

Thx