sub:text.html
html document in subfolder, sub2/text2.html
bild document in subfolder, sub2/bild2.jpg
document in samefolder, subseite2.html
document in parentfolder, ../seite2.html
document in parentfolder, /seite2.html
document in parentfolder, ../index.html
/main.gif
als popup (no template or may be popuptemplate) document in parentfolder, ../index.html
image in parent folder, ../main.gif 
image in same folder, bild.jgp 
image in sub2 folder sub2/bild2.jpg 
absolute image /main.gif 