▼ソース
<html>
<head>
<title></title>
</head>
<body>
<img src="red.gif" onClick="document.bgColor='#FF0000'">
<img src="blue.gif" onClick="document.bgColor='#0000FF'">
<img src="green.gif" onClick="document.bgColor='#00FF00'">
</body>
</html>
