Generate row, after input send data to php through href using Javascript

Question

I want to create a table that can add a new row when click a button or link, and then let user input and submit the value to php and store it in database.

Problem 1:

In my HTML,

<script>
    document.getElementById('table').innerHTML +=
    "<td><textarea id='addRow' name='addRow'></textarea></td>";

    var addRow = document.getElementById('addRow').innerHTML;     <-- Is this correct? Because I'm unable to get the data, tried with .value and .innerHTML.

    document.getElementById('table').innerHTML +=
    "<td><a href='page2.php?addRow=" + addRow + "'>Add</a></td>";
</script>

It's work fine when I add a row, by when I press the Add generated by the script, it's didn't obtain the value I input into the textarea.

Problem 2 :

The link generated from the javascript, when it is clicked, it submit an address like this :

page2.php?addRow=

The address consists of empty data, but it should be save in the page2.php too because I do not set any checking for the value.

Here is my page2.php code :

<?php
    require("Connections/localhost.php");

    $addRow = $_REQUEST["addRow"];          <-- I tried with $_GET, $_POST, $_REQUEST.
    $query = "INSERT INTO row2 (addRow) VALUES ($addRow)";
    $result = mysql_query($query);

    if($result)
    header("Location:Home.php");

?>

What is the error of my code?

EDIT :

(12/11/2012) I have uploaded my code to here. How can I solve this problem?

(17/11/2012) The MySQL part, there is some syntax error I made, that is I forget to put the single quote ' ' for each VALUES.

Solved :

I change the href to another javascript function.

"<td><h4><a href='javascript:send()'>Add</a></h4></td>"

In the send(), I get the textarea value and submit it with window.location(). That's solve my problem.

May be my code is not the appropriate way to do it, but I'll try to improve next time.