.. I've opted for a CAPTCHA-code. Sorry. I hate those myself, but I've getting too much spam lately.
And something else, from now on if the replies that I get aren't in either English, Dutch, French or German, they will be thrown away without me even bothering to find out what they are about because 90 out of 100 messages are spam anyway. I'm sorry for the 10% that meant well, but so be it. :(