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();
        }