<html>
<head>
 <title>week03a4.html</title>
 <script type="text/javascript">
    function iro(){
       ironame=document.getElementById("ironame").value;
       document.bgColor=ironame;
    }
 </script>
</head>
<body>
 <form>
  ≤input type="text" id="ironame" value="input color name">
  <input type="button" value="what color?" onclick="iro()">
 </form>
</body>
</html>