x
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<html>3
<head>4
<meta charset="utf-8">5
</head>6
<body>7
<script>8
function changeImage() {9
element = document.getElementById('myimage')10
if (element.src.match("bulbon")) {11
element.src = "/images/pic_bulboff.gif";12
} else {13
element.src = "/images/pic_bulbon.gif";14
}15
}16
</script>17
<img id="myimage" onclick="changeImage()" border="0" src="/images/pic_bulboff.gif" width="100" height="180">18
<p>点击灯泡 开/关 灯</p>19
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</body>21
</html>