jquery获取tr中控件值并操作tr实现思路

<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(); 
}