jQuery Flexslider only loads when refresh

jQuery Flexslider only loads when refresh

Hi all,

I'm developing a mobile website for our company.  http://m.ideebv.com/
I made this with jQuery Mobile with Modx as CMS.

The problem is, I use a imageslider as header; flexslider.
I made this work on the homepage. But on the next page, after you click on the first button 'wie zijn wij?'
the slider doesn't show up automatically. It only shows up when I refresh the page.
When I go back to the homepage, the problem appears again. Then I have to refresh the home-page again to show the slider.

Does somebody know how I can solve this problem?
My jquery knowledge isn't the good to solve the problem by myself.

Greets Mark

[moderator moved to jQuery Mobile]