FileMaker/Google Maps integration

Today's accomplishment - worked out how to pass coordinates back and forth between FileMaker database fields and a web viewer displaying an embedded Google Maps page. A bit of a kludge behind the scenes, but works smoothly in Windows and Mac versions of FileMaker. (Unfortunately, pulling the marker location out of the embedded map does not work in Web Publishing mode - in that case, the web viewer is an iframe and I believe GetLayoutObjectAttribute(webviewer,"source") just reads the iframe src attribute, which javascripts in the embedded page can't change.)

Done