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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
	<title>Flot Examples: Interactivity</title>
	<link href="../examples.css" rel="stylesheet" type="text/css">
	<!--[if lte IE 8]><script language="javascript" type="text/javascript" src="../../excanvas.min.js"></script><![endif]-->
	<script language="javascript" type="text/javascript" src="../../jquery.js"></script>
	<script language="javascript" type="text/javascript" src="../../jquery.flot.js"></script>
	<script type="text/javascript">

	$(function() {

		var sin = [],
			cos = [];

		for (var i = 0; i < 14; i += 0.5) {
			sin.push([i, Math.sin(i)]);
			cos.push([i, Math.cos(i)]);
		}

		var plot = $.plot("#placeholder", [
			{ data: sin, label: "sin(x)"},
			{ data: cos, label: "cos(x)"}
		], {
			series: {
				lines: {
					show: true
				},
				points: {
					show: true
				}
			},
			grid: {
				hoverable: true,
				clickable: true
			},
			yaxis: {
				min: -1.2,
				max: 1.2
			}
		});

		function showTooltip(x, y, contents) {
			$("<div id='tooltip'>" + contents + "</div>").css({
				position: "absolute",
				display: "none",
				top: y + 5,
				left: x + 5,
				border: "1px solid #fdd",
				padding: "2px",
				"background-color": "#fee",
				opacity: 0.80
			}).appendTo("body").fadeIn(200);
		}

		var previousPoint = null;
		$("#placeholder").bind("plothover", function (event, pos, item) {

			if ($("#enablePosition:checked").length > 0) {
				var str = "(" + pos.x.toFixed(2) + ", " + pos.y.toFixed(2) + ")";
				$("#hoverdata").text(str);
			}

			if ($("#enableTooltip:checked").length > 0) {
				if (item) {
					if (previousPoint != item.dataIndex) {

						previousPoint = item.dataIndex;

						$("#tooltip").remove();
						var x = item.datapoint[0].toFixed(2),
						y = item.datapoint[1].toFixed(2);

						showTooltip(item.pageX, item.pageY,
						    item.series.label + " of " + x + " = " + y);
					}
				} else {
					$("#tooltip").remove();
					previousPoint = null;            
				}
			}
		});

		$("#placeholder").bind("plotclick", function (event, pos, item) {
			if (item) {
				$("#clickdata").text(" - click point " + item.dataIndex + " in " + item.series.label);
				plot.highlight(item.series, item.datapoint);
			}
		});

		// Add the Flot version string to the footer

		$("#footer").prepend("Flot " + $.plot.version + " &ndash; ");
	});

	</script>
</head>
<body>

	<div id="header">
		<h2>Interactivity</h2>
	</div>

	<div id="content">

		<div class="demo-container">
			<div id="placeholder" class="demo-placeholder"></div>
		</div>

		<p>One of the goals of Flot is to support user interactions. Try pointing and clicking on the points.</p>

		<p>
			<label><input id="enablePosition" type="checkbox"></input>Show mouse position</label>
			<span id="hoverdata"></span>
			<span id="clickdata"></span>
		</p>

		<p>A tooltip is easy to build with a bit of jQuery code and the data returned from the plot.</p>

		<p><label><input id="enableTooltip" type="checkbox"></input>Enable tooltip</label></p>

	</div>

	<div id="footer">
		Copyright &copy; 2007 - 2013 IOLA and Ole Laursen
	</div>

</body>
</html>