function hdmdiy(n)
{ $("#showcontent").html(eval('str'+n));
$("#tag1").attr("border-bottom-width","1px");}
<tr id="newsmenu">
<td width="145" height="30" style="BORDER-RIGHT: #666666 0px solid; BORDER-TOP: #666666 1px solid; BORDER-LEFT: #666666 1px solid; BORDER-BOTTOM: #666666 0px solid" onmouseover="hdmdiy(1)" id="tag1"><div align="center">要闻</div></td>
<td width="145" style="BORDER-RIGHT: #666666 0px solid; BORDER-TOP: #666666 1px solid; BORDER-LEFT: #666666 1px solid; BORDER-BOTTOM: #666666 1px solid" onmouseover="hdmdiy(2)" id="tag2"><div align="center">媒体</div></td>
<td width="145" style="BORDER-RIGHT: #666666 0px solid; BORDER-TOP: #666666 1px solid; BORDER-LEFT: #666666 1px solid; BORDER-BOTTOM: #666666 1px solid" onmouseover="hdmdiy(3)" id="tag3"><div align="center">动态</div></td>
<td width="145" style="BORDER-RIGHT: #666666 1px solid; BORDER-TOP: #666666 1px solid; BORDER-LEFT: #666666 1px solid; BORDER-BOTTOM: #666666 1px solid" onmouseover="hdmdiy(4)" id="tag4"><div align="center">之窗</div></td>
</tr>
问题1: attr("border-bottom-width","1px"); 改边框宽度无效果问题2: 我希望做成根据n值动态定位标签的效果类似 $(eval("#tag"+n)).attr 正确的应该怎么写
{ $("#showcontent").html(eval('str'+n));
$("#tag1").attr("border-bottom-width","1px");}
<tr id="newsmenu">
<td width="145" height="30" style="BORDER-RIGHT: #666666 0px solid; BORDER-TOP: #666666 1px solid; BORDER-LEFT: #666666 1px solid; BORDER-BOTTOM: #666666 0px solid" onmouseover="hdmdiy(1)" id="tag1"><div align="center">要闻</div></td>
<td width="145" style="BORDER-RIGHT: #666666 0px solid; BORDER-TOP: #666666 1px solid; BORDER-LEFT: #666666 1px solid; BORDER-BOTTOM: #666666 1px solid" onmouseover="hdmdiy(2)" id="tag2"><div align="center">媒体</div></td>
<td width="145" style="BORDER-RIGHT: #666666 0px solid; BORDER-TOP: #666666 1px solid; BORDER-LEFT: #666666 1px solid; BORDER-BOTTOM: #666666 1px solid" onmouseover="hdmdiy(3)" id="tag3"><div align="center">动态</div></td>
<td width="145" style="BORDER-RIGHT: #666666 1px solid; BORDER-TOP: #666666 1px solid; BORDER-LEFT: #666666 1px solid; BORDER-BOTTOM: #666666 1px solid" onmouseover="hdmdiy(4)" id="tag4"><div align="center">之窗</div></td>
</tr>
问题1: attr("border-bottom-width","1px"); 改边框宽度无效果问题2: 我希望做成根据n值动态定位标签的效果类似 $(eval("#tag"+n)).attr 正确的应该怎么写
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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
<script src="http://www.liuxiaofan.com/demo/js/jquery-1.6.4.min.js" type="text/javascript"></script></head>
<body>
<table>
<tr id="newsmenu">
<td width="145" height="30" style="BORDER-RIGHT: #666666 0px solid; BORDER-TOP: #666666 1px solid; BORDER-LEFT: #666666 1px solid; BORDER-BOTTOM: #666666 0px solid" onmouseover="hdmdiy(1)" id="tag1"><div align="center">要闻</div></td>
<td width="145" style="BORDER-RIGHT: #666666 0px solid; BORDER-TOP: #666666 1px solid; BORDER-LEFT: #666666 1px solid; BORDER-BOTTOM: #666666 0px solid" onmouseover="hdmdiy(2)" id="tag2"><div align="center">媒体</div></td>
<td width="145" style="BORDER-RIGHT: #666666 0px solid; BORDER-TOP: #666666 1px solid; BORDER-LEFT: #666666 1px solid; BORDER-BOTTOM: #666666 0px solid" onmouseover="hdmdiy(3)" id="tag3"><div align="center">动态</div></td>
<td width="145" style="BORDER-RIGHT: #666666 1px solid; BORDER-TOP: #666666 1px solid; BORDER-LEFT: #666666 1px solid; BORDER-BOTTOM: #666666 0px solid" onmouseover="hdmdiy(4)" id="tag4"><div align="center">之窗</div></td>
</tr>
</table>
<div id="showcontent"></div>
<script>
function hdmdiy(n)
{
$("#showcontent").html('str'+n);
$("#tag"+n).css({"border-bottom-width":"1px"});}
</script>
</body>
</html>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script>
<script type="text/javascript">
function hdmdiy(n)
{ // $("#showcontent").html(eval('str'+n));
$("#tag" + n).css("border-bottom-width","1px");}
</script>
<table>
<tr id="newsmenu">
<td width="145" height="30" style="BORDER-RIGHT: #666666 0px solid; BORDER-TOP: #666666 1px solid; BORDER-LEFT: #666666 1px solid; BORDER-BOTTOM: #666666 0px solid" onmouseover="hdmdiy(1)" id="tag1"><div align="center">要闻</div></td>
<td width="145" style="BORDER-RIGHT: #666666 0px solid; BORDER-TOP: #666666 1px solid; BORDER-LEFT: #666666 1px solid; BORDER-BOTTOM: #666666 1px solid" onmouseover="hdmdiy(2)" id="tag2"><div align="center">媒体</div></td>
<td width="145" style="BORDER-RIGHT: #666666 0px solid; BORDER-TOP: #666666 1px solid; BORDER-LEFT: #666666 1px solid; BORDER-BOTTOM: #666666 1px solid" onmouseover="hdmdiy(3)" id="tag3"><div align="center">动态</div></td>
<td width="145" style="BORDER-RIGHT: #666666 1px solid; BORDER-TOP: #666666 1px solid; BORDER-LEFT: #666666 1px solid; BORDER-BOTTOM: #666666 1px solid" onmouseover="hdmdiy(4)" id="tag4"><div align="center">之窗</div></td>
</tr>
</table>