[OpenLayers-Users] Change layer after zooming?

[Ivo Brodien]

Hello,

i was wondering how I could change the behaviour so that after the  
user zooms a different layer is requested from the WMS.

I could not find the code, could anyone point me to it please?

so for zoom level 18 want to have:

http://localhost:8080/geoserver/wms?layers=level18.....

and for level 4:

http://localhost:8080/geoserver/wms?layers=level4.....


Thanks!
Ivo