Allow more TOC formatting options

Currently, both the map and the TOC are in a DIV that has the width set to the same width as the map alone. It appears that this is done by setting style="width: " on the wrapper DIV. The effect is that the TOC is always forced below the map because the wrapper DIV lacks the width to accommodate it. If this style attribute were removed, or done via CSS instead of on the element itself, it should be possible to move the TOC next to the map, and that would add flexibility to the layout.