大侠啊，跪求JavaScript版本的ＦolderBrowseDialog(C#)实现？
大侠帮忙啊，求求了！

我只要浏览文件夹，不要取里面的文件！
[解决办法]
// The following example displays an application that provides the ability to
// open rich text files (rtf) into the RichTextBox. The example demonstrates
// using the FolderBrowserDialog to set the default directory for opening files.
// The OpenFileDialog class is used to open the file.
using System;
using System.Drawing;
using System.Windows.Forms;
using System.IO;

public class FolderBrowserDialogExampleForm : System.Windows.Forms.Form
{
private FolderBrowserDialog folderBrowserDialog1;
private OpenFileDialog openFileDialog1;

private RichTextBox richTextBox1;

private MainMenu mainMenu1;
private MenuItem fileMenuItem, openMenuItem;
private MenuItem folderMenuItem, closeMenuItem;

private string openFileName, folderName;

private bool fileOpened = false;

// The main entry point for the application.
static void Main()
{
Application.Run(new FolderBrowserDialogExampleForm());
}


// Constructor.
public FolderBrowserDialogExampleForm()
{
this.mainMenu1 = new System.Windows.Forms.MainMenu();
this.fileMenuItem = new System.Windows.Forms.MenuItem();
this.openMenuItem = new System.Windows.Forms.MenuItem();
this.folderMenuItem = new System.Windows.Forms.MenuItem();
this.closeMenuItem = new System.Windows.Forms.MenuItem();

this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
this.folderBrowserDialog1 = new System.Windows.Forms.FolderBrowserDialog();
this.richTextBox1 = new System.Windows.Forms.RichTextBox();

this.mainMenu1.MenuItems.Add(this.fileMenuItem);
this.fileMenuItem.MenuItems.AddRange(
new System.Windows.Forms.MenuItem[] {this.openMenuItem,
this.closeMenuItem,

this.folderMenuItem});
this.fileMenuItem.Text = "File";

this.openMenuItem.Text = "Open...";
this.openMenuItem.Click += new System.EventHandler(this.openMenuItem_Click);

this.folderMenuItem.Text = "Select Directory...";
this.folderMenuItem.Click += new System.EventHandler(this.folderMenuItem_Click);

this.closeMenuItem.Text = "Close";
this.closeMenuItem.Click += new System.EventHandler(this.closeMenuItem_Click);
this.closeMenuItem.Enabled = false;

this.openFileDialog1.DefaultExt = "rtf";
this.openFileDialog1.Filter = "rtf files (*.rtf)
[解决办法]
*.rtf";

// Set the help text description for the FolderBrowserDialog.
this.folderBrowserDialog1.Description =
"Select the directory that you want to use as the default.";

// Do not allow the user to create new files via the FolderBrowserDialog.
this.folderBrowserDialog1.ShowNewFolderButton = false;

// Default to the My Documents folder.
this.folderBrowserDialog1.RootFolder = Environment.SpecialFolder.Personal;

this.richTextBox1.AcceptsTab = true;
this.richTextBox1.Location = new System.Drawing.Point(8, 8);
this.richTextBox1.Size = new System.Drawing.Size(280, 344);
this.richTextBox1.Anchor = AnchorStyles.Top
[解决办法]
AnchorStyles.Left
[解决办法]

AnchorStyles.Bottom