>thx for pointing out the culprit. If you could post the timings of your benchmarking matrix results for the different parts / different approaches / different Javascript implementations might help to get a better feel for those environments - Viv and myself suspecting innerHTML shows we need more info
>;-)

As soon as I did that change, it was days and nights. For now, while I work on other things, this is working good. I have a few enhancements to boost that performance more. But, the will come when other adjustments are completed. I do not have benchmarks nor do I have time to do so. But, if I find other obvious things affecting the rendering of all that, I will let you know.