Translation of zeitweilig

If I wanted to integrate the above demo on our page, would we need to work with Vocabulix or do you have some other options? Could you send me some samples of other teachers, who integrated this demo?
I almost forgot to tell you, that the water was brown, despite of its name... Anyway, as I was already close to my next destination I went and consulted with a tourguide of Austrian travelers.
Do be honest, I like the page as well. My suggestion is to create a page similar to the current one, but without the advanced course and without the hard copy order option which is not our thing.