TEST4

<!DOCTYPE html>
<html>
<head>
  <script src='https://api.tiles.mapbox.com/mapbox.js/v0.6.7/mapbox.js'></script>
  <link href='https://api.tiles.mapbox.com/mapbox.js/v0.6.7/mapbox.css' rel='stylesheet' />
  <style>
    body { margin:0; padding:0; }
    #map { position:absolute; top:0; bottom:0; width:100%; }
  </style>
</head>
<body>
<style type='text/css'>
    body {
        font:20px/20px 'Helvetica Neue';
        background:#f2efe9;
    }
  #swipe {
    background:#222;
    position:absolute;
    bottom:0;
    left:0;
    right:0;
    z-index:1000;
    padding:10px;
    height:30px;
  }
  #swipe #handle {
    position:absolute;
    height:20px;
    padding:5px;
    background:#fff;
    font-weight:bold;
    border:1px solid #333;
    color:blue;
    cursor:pointer;
    -webkit-user-select: none;
  }
  }
  #osm {
    position:absolute;
    left:10px;
    top:0px;
    font:30px/30px 'Helvetica Neue';
    z-index:99;
  }
  #hot {
    position:absolute;
    right:10px;
    top:0px;
    font:30px/30px 'Helvetica Neue';
    z-index:99;
  }
 
</style>
<div id='swipe'>
    <div id='handle'>drag</div>
</div>
<div id='map'></div>
<h1 id='osm'>osm</h1>
<h1 id='hot'>hot</h1>
<script>
  var map = mapbox.map('map'),
      layers = document.getElementById('layers');
 
  map.addLayer(MM.TemplatedLayer('https://{S}.tiles.fluv.io/hdm/{Z}/{X}/{Y}.png'));
  map.addLayer(MM.TemplatedLayer('https://{S}.tile.openstreetmap.fr/2u/{Z}/{X}/{Y}.png'));
  map.zoom(13).center({ lat: 19.6405, lon: -71.8884 }); 
  map.ui.hash.add();
 
  var l_parent = map.getLayerAt(1).parent,
      handle = document.getElementById('handle'),
      dragging = false;
 
  handle.onmousedown = function() { dragging = true; return false;}
  document.onmouseup = function() { dragging = false; }
  document.onmousemove = function(e) {
      if (!dragging) return;
      setDivide(MM.getMousePoint(e, map).x);
  }
 
  function setDivide(x) {
      x = Math.max(0, Math.min(x, map.dimensions.x));
      handle.style.left = (x - 20) + 'px';
      l_parent.style.clip = 'rect(0px ' + x + 'px 9999999px 0px)';
  }
 
  setDivide(300);
</script>
</body>
</html>

Modified http://api.tiles.mapbox.com/mapbox.js/v0.6.7/mapbox.js to a secure url

https://api.tiles.mapbox.com/mapbox.js/v0.6.7/mapbox.js