JavaScript can be inserted into HTML documents by using the <script> tag
Scripts can be placed in the HEAD or in the BODY
– In the HEAD, scripts are run before the page is displayed
– In the BODY, scripts are run as the page is displayed
<html>
<head>
<title>Hello World in JavaScript</title>
</head>
<body>
<script type="text/javascript">
document.write("Hello World!");
</script>
</body>
</html>