IDV in HTML pages

Hi,
I'm trying to make some pages demontrating IDV.
Why must we use the IDV browser to open html pages with IDV views ?
I've seen visAD-based viewers embeded in classic html pages in i.e. and/or mozilla.

BTW, I'm playing with http://www.loni.ucla.edu/SVG/Demo/IDV/wind_speed_tutorial.html
and I've seen a strange but :
The last view of the page is allways doubled.
Each time you remove the last example, the previous one see its display doubled.
Any clue ?

Thanks

--
  ___
 /xxx\    Bernard Mendiburu
 @ o\o    Scientific Visualization Group
 \  -/    Laboratory of Neuro Imaging, UCLA
L O N I www.loni.ucla.edu