<script src=scripts/jquery-1.8.3.min.js></script>
<script>
$(function() {
$("div[id^='d']").hide();
});
function showMenu(n) {
$("div[id^='d']").hide();
$("#d" + n).show();
}
</script>
<table width="90%" border="0" align="center" cellpadding="0" cellspacing="0" class="tsf" >
<tr>
<td align="center" onmouseover="javascript:showMenu(1)" >显示1层</td>
<td align="center" onmouseover="javascript:showMenu(2)" >显示2层</td>
<td align="center" onmouseover="javascript:showMenu(3)" >显示3层</td>
<td align="center" onmouseover="javascript:showMenu(4)" >显示4层</td>
</tr>
</table><div id="d1">一层</div>
<div id="d2">二层</div>
<div id="d3">三层</div>
<div id="d4">四层</div>
<script>
$(function() {
$("div[id^='d']").hide();
});
function showMenu(n) {
$("div[id^='d']").hide();
$("#d" + n).show();
}
</script>
<table width="90%" border="0" align="center" cellpadding="0" cellspacing="0" class="tsf" >
<tr>
<td align="center" onmouseover="javascript:showMenu(1)" >显示1层</td>
<td align="center" onmouseover="javascript:showMenu(2)" >显示2层</td>
<td align="center" onmouseover="javascript:showMenu(3)" >显示3层</td>
<td align="center" onmouseover="javascript:showMenu(4)" >显示4层</td>
</tr>
</table><div id="d1">一层</div>
<div id="d2">二层</div>
<div id="d3">三层</div>
<div id="d4">四层</div>
<head>
<script type="text/javascript" src="http://www.w3school.com.cn/jquery/jquery.js"></script>
</head>
<body>
<table width="90%" border="0" align="center" cellpadding="0" cellspacing="0" class="tsf" >
<tr>
<td align="center" >显示1层</td>
<td align="center" >显示2层</td>
<td align="center" >显示3层</td>
<td align="center" >显示4层</td>
</tr>
</table>
<div id="d0">
<div id="d1" style="display:block">11111111111</div>
<div id="d2">222222222222</div>
<div id="d3">3333333333333</div>
<div id="d4">4444444444444</div>
<div>
<style>#d0 div{display:none;}</style>
<script>
$('table td').hover(function(){$('#d0 div').hide().eq($('table td').index(this)).show();},function(){$('#d0 div').hide();})
</script>
</body>
</html>
$("div[id^='d']").hide();
});
把这个去掉
会了,谢谢