以下是代码片段：
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>表格或层往下慢慢展开的效果</title>
</head>
<body>
<script language="JavaScript">
var act;
function over(){
var h = parseInt(mytd.height);
if (h < 164){
mytd.height = h + 2;
clearTimeout(act);
act = setTimeout('over()', 10);
}
}
function out(){
var h = parseInt(mytd.height);
if (h > 30){
mytd.height = h - 2;
clearTimeout(act);
act = setTimeout('out()', 10);
}
}
</script>
<table width="316" height="10" border="0" cellpadding="0" cellspacing="0" >
<tr>
<td bgcolor="#990000"></td>
</tr>
</table>
<table width="316" height="30" border="0" cellpadding="0" cellspacing="1" bgcolor="#990000" onMouseOver="over()" onMouseOut="out()" id="mytd">
<tr>
<td bgcolor="#FFF0F0" align="center">将鼠标移到这里www.itZcn.net</td>
</tr>
</table>
</body>
</html> | 