concrete5: link not working in editing mode

Question

When I login to my sites cms(concrete5), the jQuery-events won't fire anymore:

I've built a site where certain parts should be editable. There is just one html and through jQuery I display/hide parts on that site. It is all working, except when I login, the navigation does not work anymore. The funny thing: If I rightclick a navigation-element and open it in a new window, this link actually works.

page where the problem occurs

Must be simple to solve, but not for me (completely new to concrete5)

Thanks in advance