Add Multiple file uploading in asp.net

<script type="text/javascript">

var counter = 0;

function AddFileUpload() {

var div = document.createElement('DIV');

div.innerHTML = '<input id="file' + counter + '" name = "file' + counter +

'" type="file" />' +

'<input id="Button' + counter + '" type="button" ' +

'value="Remove" onclick = "RemoveFileUpload(this)" />';

document.getElementById("FileUploadContainer").appendChild(div);

counter++;

}

function RemoveFileUpload(div) {

document.getElementById("FileUploadContainer").removeChild(div.parentNode);

}

</script>

 <form id="form1" runat="server" enctype="multipart/form-data" method="post">

<table>
<tbody>
<tr>
<td>
<span style="font-family: Arial">Click to add files</span>&nbsp;&nbsp;
<input id="Button1" type="button" value="add" onclick="AddFileUpload()" />
<br />
<br />
<div id="FileUploadContainer">
<!--FileUpload Controls will be added here -->
</div>
<br />
</td>
</tr>
<tr>
<td align="left">
<hr />
<asp:Label runat="server" ID="lblFiles"></asp:Label>
</td>
</tr>
</tbody>
</table>

</form>

Codebehind:

 for (int i = 0; i < Request.Files.Count; i++)
            {

                HttpPostedFile PostedFile = Request.Files[i];

                if (PostedFile.ContentLength > 0)
                {

                    string FileName = System.IO.Path.GetFileName(PostedFile.FileName);
                    Stream fs = PostedFile.InputStream;
                    BinaryReader br = new BinaryReader(fs);
                    byte[] ba = br.ReadBytes((Int32)fs.Length);

                 }

            }