HTML codes is converted to a table graphically after posting

HTML codes is converted to a table graphically after posting back.

I use FCKEditor as my HTML editor.
In source mode, I input the following codes:

<table><tr><td>test</td></tr></table>  

After switch to View mode, the content in FCKEidtor is as follow:

<table><tr><td>test</td></tr></table>

Then I write the value of FCKEidtor into a text document by the following codes:

IOHelper.WriteFile(@"e:\aaa.txt", FCKeditor1.Value);

when I opened the aaa.txt, I see the following content:

<table><tr><td>test</td></tr></table>

Moreover, After the page is posted back by clicking the Submit button for getting the value

of Fckeditor, what I see in the FCKEDITOR is a table instead of the HTML codes.

I switch to the Source mode, I see the following codes instead of the codes I input

originally.

<table><tr><td>test</td></tr></table>

Can anyone tell me why? why the "&lt;" is converted to "<" and the "&gt;" is converted to

">" after the page is posted back? How do I show HTML codes to user instead of a table

graphically?

your kindly reply will be appreciated.

thank you very much.