How to have a Text Area in my Web application?

I want to make a blog page in my web application. I want to have a large text area to enter atleast 300 words in my blog开发者_如何学编程 page. it should have spell check. making bold option. It should be like the s*ame window in StackOverFlow where am entering my question now*.

How to achieve this. Any suggestions Please?

I think this is the one used by Stackoverflow:

http://wmd-editor.com/

There are a few WSIWYG editors out there. The one probably most-used is TinyMCE.

Personally, I prefer the YUI Rich Text Editor.

Have a look at CKEditor. It is one of the best free editors i know of.

Checkout mootools version of WSIWYG editor. It is very lightweight and simple. http://cheeaun.github.com/mooeditable/ build from javascript framework Mootools