Untitled

<!doctype html>
<html>
<head>
	<meta http-equiv=content-type content=text/html; charset=UTF-8> <!-- ha -->
	<title>a page</title>
	<script src="scr1.js"></script>
	<script src="scr2.js"></script>
</head>
<body>
	<div id="thediv"></div>
	<script>
		document.getElementById('thediv').textContent = myvar_a + mylet_b + myvar_c + mylet_d;
	</script>
</body>
</html>