[Chameleon] LOCATE Widget

[Brian May]

What I would like to do is search for attributes in a PostGIS database, 
present potential matches, then zoom to a selected record. I am a 
beginner with PHP, and I was wondering if anyone had any code samples 
and documentation for customizing the LOCATE widget. Another option 
would be a custom widget that is not based on the LOCATE widget. I've 
been staring at code for hours and trying different things, but not 
getting very far. A push in the right direction would be great.

Thanks in advance,

Brian