Thanks again Pankaj, thank you Webfaden for your tip,
it seems there’s no way to have the script working. At this point I give it up. Probably there could be some issue with the theme itself, not sure exactly what’s going on. Jquery doesn’t seem to be the issue as the plugins I load from WP control panel work fine.
Pankaj, I’ve tried both removing that line and moving the script on the footer, nothing seems to work. I think I’ll live without the fade script ??