[OpenLayers-Users] Correct way to replace the layers in a map with a completely new set?

[Phil Scadden]

In response to a button push, I want a map to dump its current set of 
layers and load a completely new set (which could include completely 
different baselayers). Cycling through the layer list destroying each in 
turn is causing headaches as a "setnewbaselayer" tries to reference a 
non-existing div. Is there a way to nuke the
layer list in one hit? Am I better to destroy map and start again? (Was 
trying to avoid that as have legends and a great list of controls tied 
to it.).

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