jquery 获取 tr 中控件值 操作tr

<table style="width: 100%; height: 100%" border="1">            <caption>                Material/Special Tool Rental/Tool Cantainer/Transportation/Mobile</caption>            <tbody><tr>                <td>                    Project No                </td>                <td>                    <input type="hidden" name="hidProjectInnerID" id="hidProjectInnerID">                    <input name="txtProjectNo" type="text" id="txtProjectNo" class="Error"><a href="javascript:void(0)" onclick="SelectProject();">选择</a>                </td>                <td>                    Final Custome:                </td>                <td>                    <span id="labFinalCustome">Label</span>                </td>                <td>                    Order No.                </td>                <td>                    <span id="labOrderNo">Label</span>                </td>                <td>                    Project Leaing Time:                </td>                <td>                    <span id="labProjectLeaingTime">Label</span>                </td>            </tr>            <tr>                <td colspan="8">                    Exchange Rate:8.3000                </td>            </tr>            <tr align="center">                <td>                    item                </td>                <td colspan="2">                    Description                </td>                <td>                    QTY                </td>                <td>                    Unit                </td>                <td>                    Total                </td>                <td>                    Remark                </td>                <td>                    <a id="NewItem" href="javascript:void(0)">NewItem</a>                </td>            </tr>            </tbody><tbody id="tbItem">                <tr align="center">                    <td>                    </td>                    <td colspan="2">                    </td>                    <td>                    </td>                    <td>                    </td>                    <td>                    </td>                    <td>                    </td>                    <td>                                             </td>                </tr>            <tr id="tbItem1" align="center"><td><select id="selItem" name="Item"><option value="Material">Material</option><option value="Mobile">Mobile</option><option value="Others">Others</option><option value="SpecialToolRental">Special Tool Rental</option><option value="ToolContainer">Tool Container</option><option value="Transportation">Transportation</option><option value="WorkingHours">WorkingHours</option></select></td><td colspan="2"><input id="txtDescription" style="width:90%" type="text" name="Item"></td><td><input id="txtQTY" type="text" name="Item"></td><td><input id="txtUnit" type="text" name="Item"></td><td><input id="txtTotal" type="text" name="Item"></td><td><input id="txtRemark" type="text" name="Item"></td><td><a href="javascript:;SaveItem('tbItem1')">保存</a> | <a href="javascript:;DelItem('tbItem1')">删除</a> <input id="txtInnerID" type="hidden" name="Item"></td></tr></tbody>        </table>

function SaveItem(index) {            var tr = $("tr[id=" + index + "]");            var innerid = tr.find('input[ID$=txtInnerID]').val();            var item = tr.find("select[id*=selItem]").val();            var des = tr.find('input[ID$=txtDescription]').val();            var qty = tr.find('input[ID$=txtQTY]').val();            var unit = tr.find('input[ID$=txtUnit]').val();            var total = tr.find('input[ID$=txtTotal]').val();            var remark = tr.find('input[ID$=txtRemark]').val();            //alert(innerid + "/" + item + des + qty + unit + total + remark);            //验证项目编号            var proinnerid = $("#hidProjectInnerID").val();            if (proinnerid == "") {                $("#txtProjectNo").removeClass("Field");                $("#txtProjectNo").addClass("Error");                return false;            }            /*            jQuery.ajax({            type: 'get',            url: '../Handler/ProjectReport.ashx',            data: { "key": "save", "proinnerid": $("#hidProjectInnerID").val(), "innerid": innerid, "type": type, "content": content, "startdate": startdate, "enddate": enddate, "remark": remark },            cache: false,            success: function (result) {            var jsonobj = eval(result);            if (jsonobj[0].result == "true")            alert("Sueecss");            else            alert("Error");            }            });            */        }        function DelItem(index) {            var tr = $("tr[id=" + index + "]");            //var innerid = tr.find('input[ID$=txtInnerID]').val();            $("tr[id=" + index + "]").remove();        }