想要在点击新增后，自动复制上一行内容到新增行内，请问该如何实现？
<%@ page contentType="text/html;charset=UTF-8" %>
<%@ include file="/WEB-INF/views/include/taglib.jsp"%>
<html>
<head>
<title>test管理</title>
<meta name="decorator" content="default"/>
<script type="text/javascript">
$(document).ready(function() {
//$("#name").focus();
$("#inputForm").validate({
submitHandler: function(form){
loading('正在提交，请稍等...');
form.submit();
},
errorContainer: "#messageBox",
errorPlacement: function(error, element) {
$("#messageBox").text("输入有误，请先更正。");
if (element.is(":checkbox")||element.is(":radio")||element.parent().is(".input-append")){
error.appendTo(element.parent().parent());
} else {
error.insertAfter(element);
}
}
});
});
function addRow(list, idx, tpl, row){
$(list).append(Mustache.render(tpl, {
idx: idx, delBtn: true, row: row
}));
$(list+idx).find("select").each(function(){
$(this).val($(this).attr("data-value"));
});
$(list+idx).find("input[type='checkbox'], input[type='radio']").each(function(){
var ss = $(this).attr("data-value").split(',');
for (var i=0; i<ss.length; i++){
if($(this).val() == ss[i]){
$(this).attr("checked","checked");
}
}
});
}
function delRow(obj, prefix){
var id = $(prefix+"_id");
var delFlag = $(prefix+"_delFlag");
if (id.val() == ""){
$(obj).parent().parent().remove();
}else if(delFlag.val() == "0"){
delFlag.val("1");
$(obj).html("÷").attr("title", "撤销删除");
$(obj).parent().parent().addClass("error");
}else if(delFlag.val() == "1"){
delFlag.val("0");
$(obj).html("×").attr("title", "删除");
$(obj).parent().parent().removeClass("error");
}
}
</script>
</head>
<body>
<ul class="nav nav-tabs">
<li><a href="${ctx}/testaa/testA/">test列表</a></li>
<li class="active"><a href="${ctx}/testaa/testA/form?id=${testA.id}">test<shiro:hasPermission name="testaa:testA:edit">${not empty testA.id?'修改':'添加'}</shiro:hasPermission><shiro:lacksPermission name="testaa:testA:edit">查看</shiro:lacksPermission></a></li>
</ul><br/>
<form:form id="inputForm" modelAttribute="testA" action="${ctx}/testaa/testA/save" method="post" class="form-horizontal">
<form:hidden path="id"/>
<sys:message content="${message}"/>
<div class="control-group">
<label class="control-label">name：</label>
<div class="controls">
<form:input path="name" htmlEscape="false" maxlength="255" class="input-xlarge "/>
</div>
</div>
<div class="control-group">
<label class="control-label">addtime：</label>
<div class="controls">
<input name="addtime" type="text" readonly="readonly" maxlength="20" class="input-medium Wdate "
value="<fmt:formatDate value="${testA.addtime}" pattern="yyyy-MM-dd HH:mm:ss"/>"
onclick="WdatePicker({dateFmt:'yyyy-MM-dd HH:mm:ss',isShowClear:false});"/>
</div>
</div>
<div class="control-group">
<label class="control-label">sex：</label>
<div class="controls">
<!-- <sys:treeselect url="/storagewarehouse/tWarehouseFacility/treeData" id="deviceid" value="${tWarehouseFacility.id} " labelName="sex" labelValue=""
title="分类" name="" ></sys:treeselect>
-->
<sys:newtreeselect id="sex" name="sex" value="${TWarehouseFacility.deviceid} " labelName="TWarehouseFacility.name" labelValue="${TWarehouseFacility.name}"
title="选择" url="/storagewarehouse/tWarehouseFacility/treeData?type=1" cssClass="required" notAllowSelectParent="true"></sys:newtreeselect>
</div>
</div>
<div class="control-group">
<label class="control-label">test_b：</label>
<div class="controls">
<table id="contentTable" class="table table-striped table-bordered table-condensed">
<thead>
<tr>
<th class="hide"></th>
<th>添加时间</th>
<th>name</th>
<th>tes</th>
<shiro:hasPermission name="testaa:testA:edit"><th width="10"> </th></shiro:hasPermission>
</tr>
</thead>
<tbody id="testBList">
</tbody>
<shiro:hasPermission name="testaa:testA:edit"><tfoot>
<tr><td colspan="5"><a href="javascript:" onclick="addRow('#testBList', testBRowIdx, testBTpl);testBRowIdx = testBRowIdx + 1;" class="btn">新增</a></td></tr>
</tfoot></shiro:hasPermission>
</table>
<script type="text/template" id="testBTpl">//<!--
<tr id="testBList{{idx}}">
<td class="hide">
<input id="testBList{{idx}}_id" name="testBList[{{idx}}].id" type="hidden" value="{{row.id}}"/>
<input id="testBList{{idx}}_delFlag" name="testBList[{{idx}}].delFlag" type="hidden" value="0"/>
</td>
<td>
<input id="testBList{{idx}}_TestA" name="testBList[{{idx}}].TestA.addtime" type="text" readonly="readonly" maxlength="20" class="input-medium Wdate required"
value="<fmt:formatDate value="${testA.addtime}" pattern="yyyy-MM-dd HH:mm:ss"/>"
onclick="WdatePicker({dateFmt:'yyyy-MM-dd HH:mm:ss',isShowClear:false});"/>
</td>
<td>
<input id="testBList{{idx}}_TestA" name="testBList[{{idx}}].TestA.name" type="text" value="${testA.name}" maxlength="255" class="input-small required"/>
</td>
<td>
<input id="testBList{{idx}}_tes" name="testBList[{{idx}}].tes" type="text" value="{{row.tes}}" maxlength="255" class="input-small "/>
</td>
<shiro:hasPermission name="testaa:testA:edit"><td class="text-center" width="10">
{{#delBtn}}<span class="close" onclick="delRow(this, '#testBList{{idx}}')" title="删除">×</span>{{/delBtn}}
</td></shiro:hasPermission>
</tr>//-->
</script>
<script type="text/javascript">
var testBRowIdx = 0, testBTpl = $("#testBTpl").html().replace(/(\/\/\<!\-\-)|(\/\/\-\->)/g,"");
$(document).ready(function() {
var data = ${fns:toJson(testA.testBList)};
for (var i=0; i<data.length; i++){
addRow('#testBList', testBRowIdx, testBTpl, data[i]);
testBRowIdx = testBRowIdx + 1;
}
});
</script>
</div>
</div>
<div class="form-actions">
<shiro:hasPermission name="testaa:testA:edit"><input id="btnSubmit" class="btn btn-primary" type="submit" value="保 存"/> </shiro:hasPermission>
<input id="btnCancel" class="btn" type="button" value="返 回" onclick="history.go(-1)"/>
</div>
</form:form>
</body>
</html>
$(document).ready(function() {
var _catch_value;
//$("#name").focus();
$("#inputForm").validate({
submitHandler: function(form){
loading('正在提交，请稍等...');
form.submit();
},
errorContainer: "#messageBox",
errorPlacement: function(error, element) {
$("#messageBox").text("输入有误，请先更正。");
if (element.is(":checkbox")||element.is(":radio")||element.parent().is(".input-append")){
error.appendTo(element.parent().parent());
} else {
error.insertAfter(element);
}
}
});
});
function addRow(list, idx, tpl, row){
$(list).append(Mustache.render(tpl, {
idx: idx, delBtn: true, row: row
}));
$(list+idx).find("select").each(function(){
$(this).val($(this).attr("data-value"));
});
var n_idx = idx.toString();
_catch_value = $(list+(idx-1)).val();
$('#n_idx').val(_catch_value);
$(list+idx).find("input[type='checkbox'], input[type='radio']").each(function(){
var ss = $(this).attr("data-value").split(',');
for (var i=0; i<ss.length; i++){
if($(this).val() == ss[i]){
$(this).attr("checked","checked");
}
}
});
}
