We have a large Website with hundreds of pages. We have a horizontal global navigation, and a left-local-side Nav to navigate through a group of related pages.
As I was browsing clicking down from the top to the lower links in the local Nav, one link **replaced the entire side nav with another group of side nav links". I became lost and confused. It took several seconds for me to realize what happened.
Intuitively, I think the local side nav should never be swapped with an internal click inside itself.
Is it just me, or is there some truth behind this?