Set timeout at layer level - for case of cascaded layers

[Trent Burton]

Is it possible to set a timeout at the layer level?

For example, I have some layers in my mapfile that cascade (CONNECTIONTYPE
WMS) to other servers.  If the wait is too long for a getmap request, I
want mapserver to forget it and just get layers that fall within the
timeout.

I realize the pros and cons of doing this, but can it be done?