[OpenLayers-Users] Can't zoom to max extent correctly

[spam1]

Hi,

I can't manage to zoom as I want. I have a map div of 500x500. I want to
render un bbox that exactly match that div.

But I can't manage to do this, here is the result :
http://bit.ly/663cKR

I want the red box (which just represent the requested bounding box) to be
exactly on the edge of the map.

Do you have any clue ? Where am I wrong in my javascript ?

Thanks in advance !

darf