getting itemquery extent w/o drawing image

[Richard Greenwood]

itemquery and itemnquery seem to draw a map (create an image on the
server) even when the map file's status is off. All I am using
itemquery for is to get the extent of the queried object(s), which I
then use to "zoom to" those objects.

Is there anything besides itemquery and itemnquery that return an
extent? I've been thinking about using a WMS call to get an extent,
but I think I recall that WMS can only return one queried object, and
I may have many.

Thanks,
Rich

-- 
Richard Greenwood
richard.greenwood at gmail.com
www.greenwoodmap.com