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<!DOCTYPE html>
<html>
<head>
<title>Homeowners Loan Corporation Map</title>
<meta charset="utf-8" />
<meta name='viewport' content='width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no' />
<script src='https://api.tiles.mapbox.com/mapbox.js/v2.1.9/mapbox.js'></script>
<link href='https://api.tiles.mapbox.com/mapbox.js/v2.1.9/mapbox.css' rel='stylesheet' />
<link href='http://fonts.googleapis.com/css?family=Lato:400,700,400italic' rel='stylesheet' type='text/css'>
<link rel="stylesheet" type="text/css" href="css/style.css" />
<script src="https://code.jquery.com/jquery-2.1.1.min.js"></script>
<style>
.ui-opacity {
background:#FFF;
position:absolute;
left:10px;
top:70px;
height:200px;
width:28px;
border:1px solid rgba(0,0,0,0.4);
border-radius:3px;
z-index:1000;
}
.ui-opacity .handle {
position:absolute;
background:#404040;
left:0;
top:100px;
width:26px;
height:10px;
border-radius:1px;
cursor:pointer;
cursor:ns-resize;
}
.ui-opacity .handle:hover {
background:#303030;
}
</style>
</head>
<body>
<div id='map'></div>
<div id='control' class='ui-opacity'>
<div id='handle' class='handle'></div>
</div>
<script>
L.mapbox.accessToken = 'pk.eyJ1IjoiY3J1emluNzN2dyIsImEiOiI3RDdhUi1NIn0.jaEqREZw7QQMRafKPNBdmA';
var handle = document.getElementById('handle'),
start = false,
startTop;
var map = L.mapbox.map('map','',{maxZoom: 13,minZoom: 10})
.setView([34.052234, -118.243685], 11);
var racialdotmap = L.tileLayer('http://demographics.virginia.edu/DotMap/tiles4/{z}/{x}/{y}.png').addTo(map);
var stamenLayer = L.tileLayer('https://stamen-tiles-{s}.a.ssl.fastly.net/toner-lite/{z}/{x}/{y}.png', {attribution: 'Map tiles by <a href="http://stamen.com">Stamen Design</a>, under <a href="http://creativecommons.org/licenses/by/3.0">CC BY 3.0</a>. Data by <a href="http://openstreetmap.org">OpenStreetMap</a>, under <a href="http://creativecommons.org/licenses/by-sa/3.0">CC BY SA</a>.'
}).setOpacity(.5).addTo(map);
var overlay = L.mapbox.tileLayer('cruzin73vw.7e1be19c',{zIndex: 2, opacity:.5}).addTo(map);
document.onmousemove = function(e) {
if (!start) return;
// Adjust control.
handle.style.top = Math.max(-5, Math.min(195, startTop + parseInt(e.clientY, 10) - start)) + 'px';
// Adjust opacity.
overlay.setOpacity(1 - (handle.offsetTop / 200));
};
handle.onmousedown = function(e) {
// Record initial positions.
start = parseInt(e.clientY, 10);
startTop = handle.offsetTop - 5;
return false;
};
document.onmouseup = function(e) {
start = null;
};
</script>
</body>
</html>