Hi,
I have created a universal Template with scrollbars and multiple windows, that can be free configured.
Have a look at the Template named: DWSIMPLE at
http://wiki.splitbrain.org/wiki%3Atpl%3Atemplates#dwsimple
There are other examples in progress.
Some non dokuwiki example without php-code you can find here:
+ Many Frames:
http://www.wwwittenberg.de/dwlayout/index.htm
+ Drawing with Frames:
http://wwwittenberg.de/stbaa_simple/index.htm
Download the ziped file
http://wwwittenberg.de/stbaa_simple/stbaa_simple.zip
It works great !!