var testData = [
    {times: [{"starting_time": 1355752800000, "ending_time": 1355759900000}, {"starting_time": 1355769900000, "ending_time": 1355774400000}]},
    {times: [{"starting_time": 1355752800000, "ending_time": 1355761900000}, {"starting_time": 1355767500000, "ending_time": 1355774400000}]},
    {times: [{"starting_time": 1355752800000, "ending_time": 1355763910000}]},
  ];
	var width = 500;
	var chart = d3.timeline().showAxisTop().stack();
	var svg = d3.select("#header1").append("svg").attr("width", width)
		.datum(testData).call(chart);