我是用js写的自动添加行、列到Table上的 然后现在想点击li下的值在后台获取值入数据库

代码如下：

var j = 1;
function AddRow() {
var ul = document.getElementById("AllPrice");
var lis = ul.getElementsByTagName("li");
for (var i = 0; i < lis.length; i++) {
//鼠标单击事件
lis[i].onclick = function () {
var ul = document.getElementById("AllPrice");
var lis = ul.getElementsByTagName("li");
for (var i = 0; i < lis.length; i++) {
var li = lis[i];
if (li == this) {
var len = document.getElementById("tb1").rows.length;
var tr = document.getElementById("tb1").insertRow(len);
tr.id = "tr" + j;
var _ExpenseCategory = tr.insertCell();
_ExpenseCategory.innerHTML = li.innerText; //费用类别

var date = new Date();
var _ExpenseTime = tr.insertCell();
//td2.innerHTML = "<input id='txtCurrentDate' type='text' />"; //费用时间
_ExpenseTime.innerText = date.getFullYear() + "-" + (date.getMonth() + 1) + "-" + date.getDate() + " " + date.getHours() + ":" + date.getMinutes() + ":" + date.getSeconds();

var _ExpenseRemark = tr.insertCell();
//费用说明
_ExpenseRemark.innerHTML = "<textarea id='txtExpenseRemark' rows='2' cols='20' style='width:400px'></textarea>";

var _ExpenseMoney = tr.insertCell();
//金额
_ExpenseMoney.innerHTML = "<input id='txtExpenseMoney' type='text'/>";

var td5 = tr.insertCell();
td5.innerHTML = "<a class='btn btn-danger' href='#' onclick=\"del('tr" + j + "')\"><i class='glyphicon glyphicon-trash icon-white'></i>删除</a>";
j++;
}
}
}
}
}