Konqueror Userscript is a KDE improvement script for Konqueror browser.
So far, the only feature available is autoexecuting every file under ~/.kde/share/apps/konqueror/userscripts as js, within current document context. TODO, of course, a lil bit compatibility with GreaseMonkey. Include, exclude url definitely will be mandatory needed feature. So far, you got to filtered it yourself within your JS :D. I'm sure somebody will post a handy js script for this. Also, needed feature would be: enable disable userscript of course.
Screenshot shows an effect of the following code:
var elms = document.getElementsByTagName("a");