JavaScript Window

Set the autoOpen property of the jqxWindow. Author: http://jqwidgets.com

HTML

<link rel="stylesheet" href="http://jqwidgets.com/public/jqwidgets/styles/jqx.base.css">
<link rel="stylesheet" href="http://jqwidgets.com/public/jqwidgets/styles/jqx.energyblue.css">
<script src="http://jqwidgets.com/public/jqwidgets/jqx-all.js"></script>
<div id='jqxwindow'>
    <div>Header</div>
    <div id="windowContent"></div>
</div>

<button id="button">Open</button>

JavaScript

$("#jqxwindow").jqxWindow({
    height: 300,
    width: 500,
    resizable: true,
    theme: 'energyblue',
    autoOpen: false
});
var response = '<?xml version="1.0"?><br /><!DOCTYPE nmaprun><br /><?xml-stylesheet href="file:///usr/bin/../share/nmap/nmap.xsl" type="text/xsl"?><br /><!-- Nmap 6.47 scan initiated Fri Dec 11 19:17:30 2015 as: nmap -PN -T5 -oX test.xml -vv --top-ports 280 xxxx.com --><br /><nmaprun scanner="nmap" args="nmap -PN -T5 -oX test.com.xml -vv --top-ports 280';

$("#button").click(function () {
    $("#jqxwindow").jqxWindow('open');
    $('#windowContent').text(response);
    $('#windowContent').html(function(index,html){
        var patern = "&lt;br /&gt;";
        var re = new RegExp("&lt;br /&gt;","g");
        return html.replace(re, "<br  />");  
    });
});