[Chameleon] Zoom to Query

[scdyoung at tpg.com.au]

Hi all,

I have been attempting to write a query widget that will zoom to the extents of a selected feature (in 
this case a polygon).  

Using the 'executeQuery' function from utils I am to isolate the required layer and shape indexes, 
and extract the appropriate shape bounds.  I am then able to set the new extents of $oMapSession-
>oMap accordingly, though am unsure as to how I 'refresh' the mapping interface;  note that this is 
my first attempt at writing my own widget.

Any help/direction would be appreciated.

Regards

Dale