Case 5 :
Web Developer defines that back button will not use in this page
This page declared that this page will not use back button
declared "data-add-back-btn=none" to page
1. draw footer to page
2. check and do not draw back button to page
<div data-role="page" data-add-back-btn="none">
<div data-role="header" data-position="fixed">
<h1>back button sample</h1>
</div>
<div data-role="content">
</div>
</div>