<!DOCTYPE html>
<html>
<style>
body {font-family: "Lato", sans-serif;}

ul.tab {
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  border: 1px solid #ccc;
  background-color: #f1f1f1;
}

/* Float the list items side by side */
ul.tab li {float: left;}

/* Style the links inside the list items */
ul.tab li a {
  display: inline-block;
  color: black;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  transition: 0.3s;
  font-size: 17px;
}

/* Change background color of links on hover */
ul.tab li a:hover {
  background-color: #ddd;
}

/* Create an active/current tablink class */
ul.tab li a:focus, .active {
  background-color: #ccc;
}

/* Style the tab content */
.tabcontent {
  padding: 6px 12px;
  border: 1px solid #ccc;
  border-top: none;
}

body,html {
  height: 100%;
  overflow: hidden;
}
#content {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  top: 65px;
  background: #555555;
}
</style>
<body>

<ul class="tab">
  <li><a href="javascript:void(0)" class="tablinks" onclick="glance('host');return false;">host</a></li>
  <li><a href="javascript:void(0)" class="tablinks" onclick="glance('masau-ldm');return false;">masau-ldm</a></li>
</ul>

<div id="content">
	<iframe id="glance" width="100%" height="100%" frameborder="0"></iframe>
</div>

<script>
function glance(machine) {
  var loc = "http://" + machine + ".actcur.com:61208";
  var g = document.getElementById("glance")
  g.setAttribute('src', loc);
  console.log(loc);
  console.log(g);
}
glance('host')
</script>

</body>
</html>