a javascript date picker for mobile devices that uses jquery and file only 9kb
<script type="text/javascript" src="http://cdn.bootcss.com/jquery/3.1.1/jquery.js"></script>
<script type="text/javascript" src="qfdate.js"></script>
<input class="qfDate">
<!-- or -->
<button class="qfDate">Button</button>
<!-- or -->
<div class="qfDate">Div</div>