实现的是在鼠标悬停在不同链接上，在同一位置切换显示想要显示的内容
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>鼠标悬浮切换显示</title>
<script type="application/javascript">
function ChangeDiv(divId,divName,zDivCount)
{
for(i=0;i<=zDivCount;i++)
{
document.getElementById(divName+i).style.display="none";
}
document.getElementById(divName+divId).style.display="block";
}
</script>
</head>
<body>
<table border=0 cellSpacing=0 cellPadding=0 width="100%">
<tbody>
<tr height=44 vAlign=top>
<td><a onmouseover="ChangeDiv('0','JKDiv_',2)" href="#">新闻一</a></td>
<td bgColor=#ffffff width=1></td>
<td ><a onmousemove="ChangeDiv('1','JKDiv_',2)" href="#">新闻二</a></td>
<td bgColor=#ffffff width=1></td>
<td ><a onmousemove="ChangeDiv('2','JKDiv_',2)" href="#">新闻三</a>
</td>
</tr>
</tbody>
</table>
<table id="JKDiv_0" style="background-color: #0b4ebf;display:block">
<tbody>
<tr>
<td>000</td>
<td>000</td>
<td>000</td>
</tr>
</tbody>
</table>
<table id="JKDiv_1" style="background-color:#3071A9;display:none">
<tbody>
<tr>
<td>111</td>
<td>111</td>
<td>111</td>
</tr>
</tbody>
</table>
<table id="JKDiv_2" style="background-color: #FF0000;display:none">
<tbody>
<tr>
<td>111</td>
<td>111</td>
<td>111</td>
</tr>
</tbody>
</table>
</body>
</html>