Goal:
Make the datepicker to display when you activate the fixed menu (it will be active when you are scrolling).

Problem:
It works for Chrome but not for FF and IE.

I just don't know how to solve it.

Info:
*It should be working for the latest version of FF, IE and Chrome.
*http://jsbin.com/loyimowaka/3/edit?html,css,output
Thanks!