jsp源码如下：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
<script type="text/javascript" src="JQuery/jquery-1.10.1.js"></script>
<script type="text/javascript">
$(document).ready(function() {
var maxNum=0;
var minNum=parseInt($(".red_one",this).eq(0).html());
$(".red_one",this).each(function() {
var num = parseInt(this.innerHTML);
if(num>maxNum)
{maxNum=num;}
if(num<minNum)
{
minNum=num;
}
});
alert(maxNum);
alert(minNum);
count = (maxNum-minNum)+1;
$("<td>新增</td>").insertAfter(".red_one_fenxi");
/*for ( var i = 0; i < count; i++) {
//$("tr").append($("<td>新增</td>"));
$("<td>新增</td>").insertAfter(".red_one_fenxi");
}*/
});
</script>
</head>
<body>
<table border="0" cellspacing="0" cellpadding="0" align="center">
<tr>
<td>
<table border="1" cellspacing="0" cellpadding="0">
<tr>
<td class="issue" rowspan="2">期号</td>
<td class="red" colspan="6">红球</td>
<td rowspan="2" class="blue">蓝球</td>
</tr>
<tr>
<td class="red">一</td>
<td class="red">二</td>
<td class="red">三</td>
<td class="red">四</td>
<td class="red">五</td>
<td class="red">六</td>
</tr>
<tr>
<td class="issue">2013080</td>
<td class="red_one">01</td>
<td class="red">04</td>
<td class="red">10</td>
<td class="red">13</td>
<td class="red">21</td>
<td class="red">31</td>
<td class="blue">13</td>
</tr>
<tr>
<td class="issue">2013081</td>
<td class="red_one">04</td>
<td class="red">13</td>
<td class="red">14</td>
<td class="red">20</td>
<td class="red">22</td>
<td class="red">30</td>
<td class="blue">06</td>
</tr>
</table>
</td>
<td>
<table border="1" cellspacing="0" cellpadding="0">
<tr>
<td rowspan="2" bgcolor="#FF7F00" class="red_one_fenxi">一位</td>
<!-- 在此处加入动态的列 -->
<td class="fenxi" colspan="2">奇偶</td>
<td class="fenxi" colspan="2">升降</td>
<td class="fenxi" colspan="3">012路</td>
<td class="fenxi" rowspan="2" bgcolor="#FF7F00">尾数</td>
<td class="fenxi" rowspan="2">大</td>
<td class="fenxi" rowspan="2">小</td>
<td class="fenxi" colspan="3">012路</td>
<td colspan="10">尾数分布</td>
<td class="fenxi" rowspan="2" bgcolor="#FF7F00">振幅</td>
<td class="fenxi" rowspan="2">升</td>
<td class="fenxi" rowspan="2">降</td>
<td class="fenxi"colspan="3">012路</td>
</tr>
<tr>
<td>奇</td>
<td>偶</td>
<td>升</td>
<td>降</td>
<td>0</td>
<td>1</td>
<td>2</td>
<td>0</td>
<td>1</td>
<td>2</td>
<td class="fenxi">0</td>
<td class="fenxi">1</td>
<td class="fenxi">2</td>
<td class="fenxi">3</td>
<td class="fenxi">4</td>
<td class="fenxi">5</td>
<td class="fenxi">6</td>
<td class="fenxi">7</td>
<td class="fenxi">8</td>
<td class="fenxi">9</td>
<td>0</td>
<td>1</td>
<td>2</td>
</tr>
<tr>
<td bgcolor="#FF7F00" class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi" bgcolor="#FF7F00"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td class="fenxi" bgcolor="#FF7F00"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
</tr>
<tr>
<td bgcolor="#FF7F00" class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi" bgcolor="#FF7F00"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td class="fenxi" bgcolor="#FF7F00"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
<td class="fenxi"> </td>
</tr>
</table>
</td>
</tr>
</table>
</body>
</html>
问题：
我想在$("<td>新增</td>").insertAfter(".red_one_fenxi");这行代码中增加
$("<td colspan="count">新增</td>").insertAfter(".red_one_fenxi");
但是不成功，我的原意是，增加一个单元格并且跨count这么多的列，请问该怎么办
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