Fully JavaScript Enabled Editor

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.IO;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class templateWindow : System.Web.UI.Page
{
    public string listOfTemplates = "", filepath;

    protected void Page_Load(object sender, EventArgs e)
    {
        filepath = Request.PhysicalApplicationPath + "uploadsDir/templatefiles";
        if (!IsPostBack)
        {
            GetFiles();
            btnUpload.Attributes.Add("onclick", "return chkFile()");
        }
    }
    protected void btnUpload_Click(object sender, EventArgs e)
    {
        if (templateUpload.HasFile)
        {
            templateUpload.SaveAs(filepath + "\\" + templateUpload.FileName);
        }
        GetFiles();
    }

    private void GetFiles()
    {
        DirectoryInfo dirInfo = new DirectoryInfo(filepath);
        listOfTemplates = "<table width='100%' cellpadding='0' cellspacing='0'>";
        foreach (FileInfo files in dirInfo.GetFiles())
        {
            listOfTemplates += "<tr><td class='norStyle' onfocusout=\"this.className = 'norStyle'\" onclick=\"loadTemplate('" + files.Name + "'); this.className = 'selStyle';\" style='cursor:default'>" + files.Name + "</td></tr>";
        }
        listOfTemplates += "</table>";
    }
}