[OpenLayers-Users] problem with overview map

[vrbikdan]

Hi,
I have still problem with overview map. Problem is, that overview map shows 
somewhere into the sea and not in the middle of Europe. You can see it here: 
http://dvphoto.xf.cz/dp/dp.html I really don't know, where is problem. I tried to 
set the same layer as my baselayer, but this solution made a big blank red 
rectangle instead of overview map. I tried to set maxExtent: new 
OpenLayers.Bounds(-20037508, -20037508, 20037508, 20037508.34), but nothing too.

Please, can you help me?
Thanks, Dan