Absolute and relative URL's

Hallo,

I use Fckeditor (in Wordpress) and discovered a strange thing. When pasting a part of the content of a webpage (including links) into the textarea, I noticed that ABSOLUTE links that direct to a subpart of the actual website where FCkeditor is located, are stripped down into RELATIVE links.

Copied absolute links to external websites show up as absolute links... No problem there.

Is there any way to change this behaviour? I need to have absolute links all the time...

Thanx,

Koen