Version:            (using KDE KDE 3.4.0)
Installed from:    Gentoo Packages
Compiler:          gcc 3.4.3 
OS:                Linux

When stylesheet is linked using <link> element, it can be disabled (so another can be chosen) from script. But shen stylesheet is embedded using <style> element, setting the "disabled" property to "true" does nothing. i.e.:

for (var a = document.getElementsByTagName('link'), i = 0, l = a.length; i < l; i++)
  a[i].disabled = true;

works (disabled all linked stylesheets), but:

for (var a = document.getElementsByTagName('style'), i = 0, l = a.length; i < l; i++)
  a[i].disabled = true;

doesn't work.