Headline and footline

[Gerhard Lindel]

Dear list,
I have to use headlines and footlines (not footnotes) in my document.
Both lines have to have the same text on every page. I hope it is easy 
to realise,
but I cannot find the right way.  In the manual I only find footnotes 
and no headlines and footlines.
I'll be thankfull for help.
Gerhard