On change to landscape view the history is gone and the app dsiplayis the first page again

Hi, I have a simple App with JQM and every page has an back button. When I have select for example 2,3 pages and rotate my phone to landscape view, then the layout is going black and goes again to the first page. It seems, that somehow on rotate the layout is restarting and displaying the first page again.

How can I avoid this effect?

Thanks