A webviewer can't be scrolled without being the active object (if I recall correctly), so you might need to add an onfocus action for the scrolling, and script filemaker to activate the webviewer using go to object.
Brilliant - that sounds plausible. I will give it a try and post up any results.
Thanks very much for helpful pointer.
As far as I can tell that doesn't seem to do anything. I have tried onFocus, Event.observe, window.setTimeout, window.focus, window.addEventListener, but nothing seems to help.
The thing is the process works perfectly in Safari - the map draws and then scrolls to the desired location. In iOS the map draws and shows at the origin, ignoring the scrollto function. I have tried adding various delays in case it is a timing issue. I have tried selecting the web viewer as an active object. Slowing the layout draw and web viewer draw in FileMaker, and using setTimeout to delay the web viewer. The effects are noticeable in Safari, but the scroll in iOS is still ignored.
There are a number of problems highlighted on the web regarding the scrollto function and iOS, but nothing that seems to fix this specific application.