Putting HTML tag in Blogspot

There's something that I learned a few days ago:

How to Put HTML tag in Blogspot?

I kept getting error from the Posting editor saying that the HTML tag is not allowed. Then I realized in order to put HTML tag inside a HTML editor, it has to be "unescaped" before they can be embedded inside a HTML-based editor.

Then I googled around and I found this:

http://www.reconn.us/component/option,com_wrapper/Itemid,62/

Actually I needed to "escape" those characters instead of "unescaping" them.

After pasting the HTML tag I wanted, I ran the javascript, walla!

Here is a small trick I learned a few days ago. A good learning experience!