Hi ! I found a good DOM test suite last night: http://xw2k.sdct.itl.nist.gov/dom/index.html It's written by the Software Quality Group of the US National Institute of Standards and Technology. Looking at the *.js sources I estimate that this will be a pretty good test bed for us. Even getting the framework to run might require some work (and therefore be a good thing;). I will complete assignments like a["x"] = ['A', 'B'] in JS but I'd be thankfull if one of the khtml people could look at the crash occuring when opening above site. Thanks, Harri.