<html>
<head>
<script>
function bigImg(x)
{
x.style.height="64px";
x.style.width="64px";
}
function normalImg(x)
{
x.style.height="32px";
x.style.width="32px";
}
</script>
</head>
<body>
<img onmousemove="bigImg(this)" onmouseout="normalImg(this)" border="0" src="/demo/smiley.gif" alt="Smiley" width="32" height="32">
<p>当用户将鼠标移动到图片时触发 bigImg() 函数。该函数使图片变大。</p>
<p>当用户将鼠标移开时触发normalImg() 函数。该函数使图片变回原来大写。</p>
</body>
</html>