Imagepath on differnet Domain

Hi,

I´ve a big problem with the imagepath.
I insert a news image with fck Editor wich is displayed: img src="data/image/"
Is it possible to put the Domain within? eg: <img src="http://domain.at/data/image/"

I need this for one project. The administration is on an other Domain as the Project and there is no filebased connection to the administrationserver.

I hope anybody has an idea!

bye,
Bernhard