<html>
<head>
<title>concatenation</title>
</head>
<body>
<h1>Concatenation</h1>
<script>
//Chao Li. September 20, 2007
//concatenation
//ask user for name
var userName;
var greeting;
userName = prompt("What is your name?");
greeting = "Hi, "+userName+"!!";
alert(greeting);
</script>
</body>
</html>
