You do not have to wait for all layers to display to continue zooming in, just click again.
The JavaScript coding is currently set to increase or decrease the scale by a factor of 3.
These are 'live' pages, assembled on the fly from the various WMS servers.
All servers are not mirrored and 'always' on-line.
Click the "Layers" link to see and modify the various layers included in your map.
The window may take a while to load. Layer names are determined at the server level.
Check "Auto" first, then make any changes.
At this point layers should appear or disappear when a checkbox is checked or unchecked.
Some servers are faster than others. Use some care as the small
"Layers" page must be closed before attempting to reopen it again.
This is a modification of earlier efforts by Dave Vieglais
Inline Javascript copyright © 2002
The University of Kansas Natural History Museum and Biodiversity Research Center