JSTEST/11.1.html at master · LabanokHanna/JSTEST · GitHub

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YPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
<script src="jquery-3.2.1.min.js" type="text/javascript"></script>
</head>
<body>
	<div>
		<h1>Par 1</h1>
		<a href="https://mail.google.com/mail/">Google</a>
			<p id="par1">Cras justo odio, dapibus ac facilisis in, egestas eget quam. Nullam quis risus eget urna mollis ornare vel eu leo. Donec ullamcorper nulla non metus auctor fringilla.</p>

	</div>
	<div>
		<h2>Par 2</h2>
		<a href="https://mail.google.com/mail/">Google</a>
			<p id="par2">Cras justo odio, dapibus ac facilisis in, egestas eget quam. Nullam quis risus eget urna mollis ornare vel eu leo. Donec ullamcorper nulla non metus auctor fringilla.</p>

	</div>
	<div>
		<h3 id="par3">Par 3</h3>
		<a href="https://mail.google.com/mail/">Google</a>
			<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Nullam quis risus eget urna mollis ornare vel eu leo. Donec ullamcorper nulla non metus auctor fringilla.</p>

	</div>
	<div>
		<h4 id="par4">Par 4</h4>
		<a href="https://mail.google.com/mail/">Google</a>
			<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Nullam quis risus eget urna mollis ornare vel eu leo. Donec ullamcorper nulla non metus auctor fringilla.</p>

	</div>
<!-- <input type="button" value="старт" onclick="Start()">
<input type="button" value="стоп"  onclick="Stop(a)">
 -->
 <button style = "width: 100px; height: 100px;" onclick="Start()"></button>
 <button onclick="Stop(a)" style="width: 100px; height: 100px;"></button>
<script>
	var a = 0;
	var b = 0;
	var Start  = function(){
		var d = new Date();
		return a=d.getTime();
	}

	var Stop = function(a){
		var d = new Date();
		var b = d.getTime();
		this.a = a;
		result = b - a;
		var g = document.getElementById("par1");
            g.innerHTML = result/1000;
	}


</script>
</body>
</html>


</body>
</html>