Have a look at <gx:drawOrder>
http://code.google.com/apis/kml/documentation/kmlreference.html#gxdra...
On Feb 6, 6:10 pm, Spencaaa wrote:
> If line features share a similar route before diverging it would be helpful
> to choose which line appears to be "on top" while they share the same
> path. This could be easily controlled by associating a line's listing in
> the sidebar with it's "underneath/ on top" orientation: lower on the list -
> underneath, higher on the list - on top. This could help make maps cleaner
> and easier to understand especially when many lines start with a similar
> route and then split, ex. running routes that share a common starting point.