Steam ID

HTML

<html lang="en">
  <head>
    <!-- Required meta tags -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

    <!-- Bootstrap CSS -->
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css" integrity="sha384-9gVQ4dYFwwWSjIDZnLEWnxCjeSWFphJiwGPXr1jddIhOegiu1FwO5qRGvFXOdJZ4" crossorigin="anonymous">

    <title>Hello, world!</title>
  </head>
  <body>
  <div class="container">
<div class="alert alert-primary" role="alert">
 The website is currently in progress.
</div>
<center><a href="/"><img src="img/logo.gif"></a></center>
<div class="container">
  <div class="row">
    <div class="col-sm">
     <h3>Where you can find me?</h3>
	 <ul class="list-group">
  <li class="list-group-item"><a href=''>Discord: <b>lorem</b></a></li>
  <li class="list-group-item"><a href="skype:lorem?add">Skype: <b>lorem</b></a></li>
  <li class="list-group-item"><a href="mailto:lorem?subject=I want to get in touch with you">Mail: <b>lorem</b></a></li>
  <li class="list-group-item"><a href="lorem">Steam Profile: <span id="steamID"></span></a></li>
</ul>
    </div>
    <div class="col-sm">
     <h3>My projects</h3>
	 <ul class="list-group">
  <li class="list-group-item">Coming soon..</li>
  <li class="list-group-item">Coming soon..</li>
  <li class="list-group-item">Coming soon..</li>
  <li class="list-group-item">Coming soon..</li>
</ul>
    </div>
  </div>
  
</div>
</div>
    <!-- Optional JavaScript -->
    <!-- jQuery first, then Popper.js, then Bootstrap JS -->
    <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js" integrity="sha384-cs/chFZiN24E4KMATLdqdvsezGxaGsi4hLGOzlXwp5UZB1LY//20VyM2taTB4QvJ" crossorigin="anonymous"></script>
    <script...

JavaScript

var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
    if (this.readyState == 4 && this.status == 200) {
        myFunction(this);
    }
};
xhttp.open("GET", "https://steamcommunity.com/profiles/76561198051219432/?xml=1", true);
xhttp.send();

function myFunction(xml) {
    var xmlDoc = xml.responseXML;
    var x = xmlDoc.getElementsByTagName('steamID')[0];
    var y = x.childNodes[0];
    document.getElementById("steamID").innerHTML =
    y.nodeValue; 
}