I could try that - thanks. I wasn't sure how much to move the map outside the dragging by the user but that makes sense. Since I just had to look the acronym Z

I could try that - thanks. I wasn't sure how much to move the map outside the dragging by the user but that makes sense. Since I just had to look the acronym ZUI up, I guess that's an independent concept :). I've tried to use Google maps as an inspiration as I find it such an interesting web app.