Thanks Richard. Very nice demo too. Upload for online access doubly nice too. BTW, your demo made me think about hover and click support on SVG elements, when inside the HTML page, and reading [this nice article](https://css-tricks.com/svg-map-rollovers/) (among others), it seems possible, but perhaps more control on `id` and/or `class` elements may be necessary for the SVG's `<polyline>` elements generated by the SQL function. I'll cross that bridge when I actually look into all that.