javascript - javascript で tr id を使用して tr innerHTML を更新する

Question

<script type="text/javascript">
    Array.prototype.AddRecord = function () {

        document.getElementById('mytable').style.display = "block";
        table
        var table = document.getElementById("mytable");
        var rows = table.rows.length;

        var row = table.insertRow(rows++);
        var cell1 = row.insertCell(0);
        var cell2 = row.insertCell(1);
        var cell3 = row.insertCell(2);
        var cell4 = row.insertCell(3);
        var cell5 = row.insertCell(4);

        //alert(row.id);
        var name = this[0];
        var age = this[1];

        var param = "editrow(\'" + name + "\'," + age + "," + rows + ")";
        var param1 = "deleterow(" + rows + ")";
        var param2 = "Update(\'" + name + "\'," + age + "," + rows + ")";

        cell1.innerHTML = name;
        cell2.innerHTML = age;
        cell3.innerHTML = "<input type='button' value='Edit' id='edit' onclick=" + param + " >";
        cell4.innerHTML = "<input type='button' value='Delete' id='delete' onclick=" + param1 + ">";
        cell5.innerHTML = "<input type='button' value='Update' id='update' onclick=" + param2 + ">";

    }

    function Update(name, age, row) {
        alert(name);
        alert(age);
        alert(row);
        document.getElementById('create').style.display = "none";
        document.getElementById('update').style.display = "block";

    }
</script>

tri id である行 id に応じて行を更新したいのですが、tr セル データを更新するには、これを手伝ってください。私は初心者です...事前に感謝します...