in reply to
Node Parser too slow?
Thank you for your suggestions, I am now trying to create a static HTML File of a thread, whenever a comment is written. This has the advantage not to parse all XML Files each time someone wants to read the thread and might be a bit faster. Thanks to grantm, I am going to use the algorithm without the keys() function now.
Perhaps some of you are willing to test my system when I'm a bit further :)
reading between the lines is my real pleasure