Logo/widgets in Header

Hello, in my header I have my logo set as advertising widget. So far, so good. The logo/widget is on top on the left side. Next to it (right) I want to put a slogan. If I use the header title, it appears under the logo. I don't want that. If I use another widget, it also appears under or above the first logo/widget. Is it possible to put text or a widget on the right side next to the header widget? How? Thanks for help!! Vivien