Example with arguments passing to a function

<!DOCTYPE html>
<html>
<head>
<title>JS tutorial</title>
<style type="text/css">
body {
	margin:40px 30px; padding:3px;
	background-color:#eee; color:#444;
}
input {
	font-family:"Lucida", serif; font-size:1.0em; color:#555;
}
</style>
<script type="text/javascript">
	var result = 0;
	function helloWorld(a, b, res) { 
		result = a.toUpperCase() + "  " + b.toUpperCase();
		res.textContent = "";
		res.textContent = "Hello   " + result + "!";
	}
</script>
</head>

<body>
	<form action="" method="post">
	<input type="text" onfocus="this.value=''" value="first name" id="val1" />
	<input type="text" onfocus="this.value=''" value="last name" id="val2" /><br /><br />
	<input type="button" onclick=" helloWorld(val1.value, val2.value, res)" value="submit" />
	</form>
	<p id="res"></p>
</body>

</html>

Example with arguments passing to a function

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