Hi gruppenhaus,
The non-commercial or evaluation download now as written on http://www.jqwidgets.com/download/ include a watermark. It is a link to our website displayed in the bottom-right edge of a widget. It does not affect the functionality of the widget. if you evaluate the software for commercial purposes and want to remove it, you will need to get a commercial license. If you represent a non-commercial organization, then you can use the software with the watermark, but in case you want to remove it, then you can request a free license by contacting our sales team.
Best Regards,
Peter Stoev
jQWidgets Team
http://www.jqwidgets.com