Slick, and super fast. Makes it so that I do not even want to move onto JSON ;-)... (JK, my engineers are forcing me too)
Made some minor mods, these add a little time and still processes over 50K lines in about 6-8 seconds, and 100K right about 10 seconds. Now everything is its own html object ready for all the beauty of the rest of jQuery. I wrapped each parent in an ID'ed span and each Location and an ID'ed span. OK this has gone in this direction to the point that I would have to take a different approach to get it better. My other goals are introspecting the XML to determine depth of the PARENT => CHILD relationships. And to pull non-stadard (i.e. not id or label) attributes and manipulate them.