How can I capture rich text as input to a web form?

I need to have the user be able to cut-and-paste rich text into a big text box on my web page. How do I do that?

From stackoverflow

• You can install a JavaScript editor like TinyMCE to allow for rich text. This particular WYSIWYG editor has a "Paste from Word" function that helps reduce all the nasty character encoding problems you typically have when users attempt to publish Word documents on the web.

  ohnoes : Please note that you can't do RTF paste to TinyMCE, at least on Mac (the browser is not the case)

• I guess you can do it only by using IE/Windows/TinyMCE-like-widget set.

  Here's some information about clipboards.