jquery点击新增一行节点

HTML：

<div id="tab_4" class="edit set"style="display: none">
    <div id="sp_0" class="sp_0">
 <table>
 <tr>
                        <th>排序</th>
                        <th>商城价</th>
                        <th>市场价</th>
                        <th>库存</th>
                        <th>购买上限</th>
                        <th>货号</th>
                        <th style='display:none' >货位</th>
                        <th>上架</th>
                        <th>类型</th>
                        <th>操作</th>
 </tr>
  <tr>                                                 
                        <td width="10%" class="nwp"><input type="text" reg1="^[0-9]{0,2}$" desc="2个字符以内" id="sort" class="text20" name="sort1" maxlength="2"  size="5" /></td>
                        <td width="12%" class="nwp"><samp class="red"></samp> <input reg1="^[0-9]{1,7}\.{0,1}[0-9]{0,2}$" desc="保留2位小数，最多允许9位有效数字" type="text" id="skuPrice" name="skuPrice1"class="text20" size="5" onblur="changePri(this)"/></td>
                        <td width="12%" class="nwp"><input type="text" id="marketPrice" name="marketPrice1" class="text20" reg1="^[0-9]{0,7}\.{0,1}[0-9]{0,2}$" desc="保留2位小数，最多允许9位有效数字" size="5" onblur="changePri(this)"/></td>
                        <td width="12%" class="nwp"><samp class="red"></samp><input reg1="^(0|[1-9][0-9]{0,4})$" desc="5个字符以内非负整数" type="text" id="stockInventory" name="stockInventory1" class="text20" size="5" /></td>
                        <td width="12%" class="nwp"><input reg1="^(.{0,0}|0|[1-9][0-9]{0,4})$" desc="请输入5个字符以内非负整数或为空 " type="text" id="skuUpperLimit" name="skuUpperLimit1" class="text20" size="5"/></td>
                        <td width="12%"  class="nwp"><input type="text" id="sku" name="sku1" class="text20" reg1="^[a-zA-Z0-9_\u4e00-\u9fa5]{0,20}$" desc="20个字符以内" size="5"/></td>
                        <td width="12%" class="nwp" style='display:none;' ><input reg1="^[a-zA-Z0-9_\u4e00-\u9fa5]{0,20}$" desc="20个字符以内" type="text" id="location" name="location1" class="text20" size="5" /></td>                
    </tr>                    
    
 </table>    
 <input type="hidden" id="divNum" name="divNum" >
    </div>
     <div class="page_c">
            <input type="button" id="button1" value="新增一排">
         </div>
 </div>

jQuery：

$("#button1").click(function(){
        var divNum=$("#divNum").val();
        divNum=1;
        var divHtml=$("#sp_0").html();
            divHtml="<div id='sp_"+divNum+"' class='sp_"+divNum+"'>"+divHtml+"</div>";
        divHtml = divHtml.replace(/specradio1/g, "specradio"+divNum);
        // skuType1   showStatus1  sort1 skuPrice1 marketPrice1 stockInventory1  skuUpperLimit1 sku1  location1  
        divHtml = divHtml.replace(/skuType1/g, "skuType"+divNum);
        divHtml = divHtml.replace(/showStatus1/g, "showStatus"+divNum);
        divHtml = divHtml.replace(/sort1/g, "sort"+divNum);
        divHtml = divHtml.replace(/skuPrice1/g, "skuPrice"+divNum);
        divHtml = divHtml.replace(/marketPrice1/g, "marketPrice"+divNum);
        divHtml = divHtml.replace(/stockInventory1/g, "stockInventory"+divNum);
        divHtml = divHtml.replace(/skuUpperLimit1/g, "skuUpperLimit"+divNum);
        divHtml = divHtml.replace(/sku1/g, "sku"+divNum);
        divHtml = divHtml.replace(/location1/g, "location"+divNum);
        divHtml = divHtml.replace(/#sp_0/g, "#sp_"+divNum);
        //把复制的div追加在最后
        $(".page_c").before(divHtml);
        $("#divNum").val(divNum);
    });

点击新增