ajax交付表单数据

<form action="" method="post">
					<div class="table_lv1_item">
						<div class="table_lv1_title">
							<span class="table_lv1_title_name">便捷性、整机功能及稳定性评价</span> 
							<span class="table_lv1_status1"></span>
						</div>
						<div class="table_lv2_item">
							<div class="table_lv2_title">
								<span class="table_lv2_status1"></span> 
								<span class="table_lv2_title_name">机器使用便捷性评估</span>
							</div>
						<table width="100%" class="table_3r" cellpadding="0" cellspacing="0" id="convenientItem">
							<colgroup>
								<col style="width: 33%" />
								<col style="width: 25%" />
								<col style="width: 42%" />
							</colgroup>
							<tr>
								<th>评价方面</th>
								<th>评价指标</th>
								<th>评价结果集</th>
							</tr>
                   	
						<s:iterator value="#request.tbImgUseConvenientItems" var="ic" >
							<tr>
								<td align="center">
									<input type="hidden" name="ids" value="${ic.id }" >
									<input type="text" name="evaluates" class="table_input" style="width:280px" value="${ic.evaluate } ">
								</td>
								<td align="center">
									<input type="text" name="targets" class="table_input" style="width:280px" value="${ic.target }">
								</td>
							 	<td align="center" class="y_n">
                        			<input type="checkbox" name="ideas" value="1-满意"/><span>1-满意</span>
                        			<input type="checkbox" name="ideas" value="2-一般"/><span>2-一般</span>
                        			<input type="checkbox" name="ideas" value="3-不满意"/><span>3-不满意</span>
                        			<img class="del_line fn-right" src="../images/delete_line.png">
                        		</td>
						 	</tr>
                    	</s:iterator>
                    	
						</table>
							<div class="o_h">
								<div class="add_table_line" align="center" style="float: left;" id="add_convenientItem">
									<div class="add_table_line_button_arrow"></div>
									<img src="<%=request.getContextPath()%>/images/add_line_icon.png" /><span>添加评价指标</span>
								</div>
								<div class="submit_button" style="float: right">