x
 
<html>
<head>
<script type="text/javascript">
function check(browser)
  {
  document.getElementById("answer").value=browser
  }
</script>
</head>
<body>
<p>您喜欢哪款浏览器?</p>
<form>
<input type="radio" name="browser" onclick="check(this.value)" value="Internet Explorer">Internet Explorer<br />
<input type="radio" name="browser" onclick="check(this.value)" value="Firefox">Firefox<br />
<input type="radio" name="browser" onclick="check(this.value)" value="Netscape">Netscape<br />
<input type="radio" name="browser" onclick="check(this.value)" value="Opera">Opera<br />
<br />
您喜欢的浏览器是:<input type="text" id="answer" size="20">
</form>
</body>
</html>