<html>
<script language="JavaScript">
function changFont( x ){
var font_style = x;
var article = document.getElementById("article");
if( typeof font_style == "string" ){
article.style.fontWeight = font_style;
} else {
article.style.fontSize = font_style;
}
}
</script>
<body>
<p>
<a onClick="changFont('normal');">正常</a> <a onClick="changFont('bold');">粗体</a>
<a onClick="changFont(14);">小号</a> <a onClick="changFont(18);">大号</a>
</p>
<p id="article">
我是一些文字 ...<br />
Some Text ...
</p>
</body>
</html>