<html><head><link rel="stylesheet" href="https://apps.bdimg.com/libs/jquerymobile/1.4.2/jquery.mobile.min.css"><script src="https://apps.bdimg.com/libs/jquery/1.10.2/jquery.min.js"></script><script src="https://apps.bdimg.com/libs/jquerymobile/1.4.2/jquery.mobile.min.js"></script><script>x=0;$(document).on("pageinit","#pageone",function(){ $("#test").on("scrollstart",function(){ $("span").text(x+=1); }); });</script></head><body><div data-role="page" id="pageone"> <div data-role="header"> <h1>The scrollstart Event</h1> </div>