title: Enable/disable scrolling on button click
body: <p>Is there a simple way to do this? I have a website with a flip animation(on buttonclick), wich has two sides. The frontpage has to cover the viewport height and width. The backpage is a little longer, especially on mobile devices. Unfortunately  the length of the backpage causes the frontpage to be the same height. So i have a grey background color area underneath the cover of the frontpage..</p>
  
  <p>My idea was to make the flip button also enable and disable scrolling. I've tried some things but javascript and jquery are not my specialty(at all). So can somebody provide me a little piece of code to add to the flipbutton?</p>