sumOfNumbers.html

<!DOCTYPE html>
<html>
<head>
	<title></title>
</head>
<body>
	<h3>sum numbers nd display in other textbox</h3>
	<input type="number" name="textbox1" id="p1">
	<input type="number" name="textbox2" id="p2">
	<input type="submit" value="submit" onclick="myfunction()">
	<br>
	<br>
	<input type="number" name="textbox3" id="p3">
	<p id="p4"></p>
	<script type="text/javascript">
		function myfunction(){
			var x,y,z;
			x=parseInt(document.getElementById('p1').value);
			y=parseInt(document.getElementById('p2').value);
			// document.getElementById('p4').innerHTML = typeof "x";
		

			z=x + y;
			document.getElementById('p3').value=z;
		}
	</script>

</body>
</html>