怎么为动态增加的input数组相应的赋值

<input type="button" id="btn_addtr" class="btn" value="增行" style="float:left;" />最多可增100行<br />
        <table id="softlist" style=" background:#f0f0f0;width:100%" >
        <tr>
        <td><input type="text" size="2" value="1"  id="tb_number"  class="tb_box" /><input name="tb_softid" id="tb_softid" type="hidden" /></td>
        <td>软件名称：<asp:TextBox ID="tb_softName" runat="server" ReadOnly="true" CssClass="tb_box" Width="200"></asp:TextBox></td>
        <td><input type="button" value="选择" class="btn" onclick="window.open('SelectSoft.aspx','','height=800,width=700,scrollbars=yes,status =yes')" /></td>
        <td>站点数：<asp:TextBox ID="tb_Sites" runat="server"   ReadOnly="true" CssClass="tb_box" Width="50"></asp:TextBox></td>
        <td>市场价：<asp:TextBox ID="tb_MarketPrice" runat="server" ReadOnly="true" CssClass="tb_box" Width="50"></asp:TextBox></td>
        <td>伙伴折扣：<asp:TextBox ID="tb_Fold" runat="server" ReadOnly="true" CssClass="tb_box" Width="50"></asp:TextBox></td>
         <td><input type="button"  onclick="deltr()" class="btn" value="删除" /></td>
         </tr> 
    </table>

 var count = $("#tb_number").val();    //递增的开始值，这里是你的ID  
                $(function () {
                    var show_count = 100;   //要显示的条数  
                    var fin_count = parseInt(count) + (show_count - 1);   //结束递增的条件  
                    $("#btn_addtr").click(function () {
                        if (count < fin_count)    //点击时候，如果当前的数字小于递增结束的条件  
                        {
                            $("#softlist tr:eq(0)").clone().appendTo("#softlist");   //在表格后面添加一行   
                            $("#softlist tr:last td input:first").val(++count);   //改变添加的行的ID值。                  
                        }
                    });
                });
                function deltr() {
                    var length = $("#softlist tr").length;
                    if (length <= 1) {
                        alert("至少保留一行");
                    } else {
                        $("#softlist tr:last").remove();
                        count--;
                    }
                }  

function SetParentValue() { 
        window.opener.$('#tb_softName').val($("#tb_SoftName").attr("value"));
        window.opener.$('#tb_softid').val($("#tb_SoftID").attr("value"));
        window.opener.$('#tb_Sites').val($("#tb_Sites").attr("value"));
        window.opener.$('#tb_Fold').val($("#tb_Fold").attr("value"));
        window.opener.$('#tb_MarketPrice').val($("#tb_Price").attr("value")); 
        window.close(); 
    }