Link relative vs absolute

Using DNN 05.02.01 and FCK 2.0.3x -

When I enter a bunch of text, highlight some of it, and click the 'link' button....i pick the page i want to link to and click "use selected link", the address in the box looks like this:

"www.mydomain.com/Home/Yadda/page.aspx"

How do I get this page to be relative by default? i.e. "/home/yadda/page.aspx"

Moving from a dev server to live will prove to be exceedingly difficult. That is, dev.company.com to http://www.company.com.

Thanks