<!DOCTYPE HTML>
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								<html>
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								<head>
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								  <title>Timeline | Loading screen example</title>
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								  <script src="http://cdnjs.cloudflare.com/ajax/libs/moment.js/2.8.4/moment.min.js"></script>
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								  <script src="../../../dist/vis.js"></script>
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								  <link href="../../../dist/vis-timeline-graph2d.min.css" rel="stylesheet" type="text/css" />
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								</head>
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								<body>
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								  <h1>Timeline with loading screen</h1>
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								  <div id="visualization"></div>
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								</body>
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								<script>
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								  var now = moment();
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								  var groupCount = 20;
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								  var itemCount = 400;
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								  // create a data set with groups
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								  var groups = new vis.DataSet();
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								  for (var g = 0; g < groupCount; g++) {
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								    groups.add({
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								      id: g,
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								      content: "group " + g
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								    });
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								  }
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								  var types = ['point', 'range', 'box', 'background']
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								  // create a dataset with items
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								  var items = new vis.DataSet();
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								  for (var i = 0; i < itemCount; i++) {
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								    var start = now.clone().add(Math.random() * 180, 'days');
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								    var end = start.clone().add(Math.random() * 30, 'days');
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								    var group = Math.floor(Math.random() * groupCount);
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								    items.add({
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								      id: i,
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								      type: types[Math.floor(Math.random() * types.length)],
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								      group: group,
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								      content: '' + i,
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								      start: start,
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								      end: end
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								    });
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								  }
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								  // create visualization
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								  var container = document.getElementById('visualization');
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								  var options = {
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								    loadingScreenTemplate: function() {
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								      return '<h1>Loading...</h1>'
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								    }
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								  };
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								  var timeline = new vis.Timeline(container, items, groups, options);
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								</script>
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								</html>
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