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<!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=gb2312" />
<title>无标题文档</title>
<style type="text/css">
.sec1{
background:#33FFFF
}
.sec2{
background:#FFCCFF
}
</style>
<script language="javascript" type="text/javascript">
function secBoard(n)
{
for(i=0;i<secTable.cells.length;i++)
secTable.cells[i].className="sec1";
secTable.cells[n].className="sec2";
for(i=0;i<mainTable.tBodies.length;i++)
mainTable.tBodies[i].style.display="none";
mainTable.tBodies[n].style.display="block";
}
</script>
</head>
<body>
<form name="test" action="" >
<table width="100%" border="1" cellspacing="0" cellpadding="0" id="secTable">
<tr>
<td width="20%" height="32" align="center" class="sec2" onMouseOver="secBoard(0)">1</td>
<td width="20%" align="center" class="sec1" onMouseOver="secBoard(1)">2</td>
</tr>
</table>
<table width="100%" border="1" cellpadding="0" cellspacing="0" bgcolor="#CCCCCC" id="mainTable">
<tbody style="display:block;">
<tr>
<td width="20%" height="32" align="center" bgcolor="#FFFFFF">1</td>
<td align="center" bgcolor="#FFFFFF"><input type="text" name="a1" value="" /></td>
<td align="center" bgcolor="#FFFFFF"><input type="text" name="a2" value="" /></td>
<td align="center" bgcolor="#FFFFFF"><input type="text" name="a3" value="" /></td>
<td align="center" bgcolor="#FFFFFF"><input type="text" name="a4" value="" /></td>
</tr>
</tbody>
<tbody style="display:none;">
<tr>
<td width="20%" height="32" align="center" bgcolor="#FFFFFF">2</td>
<td align="center" bgcolor="#FFFFFF"><input type="text" name="b1" value="" /></td>
<td align="center" bgcolor="#FFFFFF"><input type="text" name="b2" value="" /></td>
<td align="center" bgcolor="#FFFFFF"><input type="text" name="b3" value="" /></td>
<td align="center" bgcolor="#FFFFFF"><input type="text" name="b4" value="" /></td>
</tr>
</tbody>
</table>
</form>
</body>
</html>
<!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=gb2312" />
<title>无标题文档</title>
<style type="text/css">
.sec1{
background:#33FFFF
}
.sec2{
background:#FFCCFF
}
</style>
<script language="javascript" type="text/javascript">
function secBoard(n)
{
var secTable=document.getElementById('secTable');//===================
for(var i=0;i<secTable.rows[0].cells.length;i++)
{
if(i==n)secTable.rows[0].cells[i].className="sec2";
else secTable.rows[0].cells[i].className="sec1";
}
var tbs=document.getElementById('mainTable').getElementsByTagName('tbody');//===================
for(var i=0;i<tbs.length;i++)
{
if(i==n)tbs[i].style.display="";
else tbs[i].style.display="none";
}
}
</script>
</head>
<body>
<form name="test" action="" >
<table width="100%" border="1" cellspacing="0" cellpadding="0" id="secTable">
<tr>
<td width="20%" height="32" align="center" class="sec2" onMouseOver="secBoard(0)">1</td>
<td width="20%" align="center" class="sec1" onMouseOver="secBoard(1)">2</td><td width="20%" align="center" class="sec1" onMouseOver="secBoard(2)">3</td>
</tr>
</table>
<table width="100%" border="1" cellpadding="0" cellspacing="0" bgcolor="#CCCCCC" id="mainTable">
<tbody style="display:block;">
<tr>
<td width="20%" height="32" align="center" bgcolor="#FFFFFF">1</td>
<td align="center" bgcolor="#FFFFFF"><input type="text" name="a1" value="a1" /></td>
<td align="center" bgcolor="#FFFFFF"><input type="text" name="a2" value="a2" /></td>
<td align="center" bgcolor="#FFFFFF"><input type="text" name="a3" value="" /></td>
<td align="center" bgcolor="#FFFFFF"><input type="text" name="a4" value="" /></td>
</tr>
</tbody>
<tbody style="display:none;">
<tr>
<td width="20%" height="32" align="center" bgcolor="#FFFFFF">2</td>
<td align="center" bgcolor="#FFFFFF"><input type="text" name="b1" value="b1" /></td>
<td align="center" bgcolor="#FFFFFF"><input type="text" name="b2" value="b2" /></td>
<td align="center" bgcolor="#FFFFFF"><input type="text" name="b3" value="" /></td>
<td align="center" bgcolor="#FFFFFF"><input type="text" name="b4" value="" /></td>
</tr>
</tbody>
<tbody style="display:none;">
<tr>
<td width="20%" height="32" align="center" bgcolor="#FFFFFF">3</td>
<td align="center" bgcolor="#FFFFFF"><input type="text" name="c1" value="c1" /></td>
<td align="center" bgcolor="#FFFFFF"><input type="text" name="c2" value="c2" /></td>
<td align="center" bgcolor="#FFFFFF"><input type="text" name="c3" value="" /></td>
<td align="center" bgcolor="#FFFFFF"><input type="text" name="c4" value="" /></td>
</tr>
</tbody>
</table>
</form>
</body>
</html>