Html Response
Set the inViewPort property of the jqxResponse. Author: http://jqwidgets.com
by jqwidgets
HTML
<script src="https://jqwidgets.com/public/jqwidgets/jqx-all.js"></script>
<div id="el1"></div>
<div id="el2"></div>
<div id="log"></div>
JavaScript
var response = new $.jqx.response();
var inView = response.inViewPort($("#el1"));
$("#log").html("HTML Element with ID='el1' is in View Port: " + inView);