system_a= new Image();
system_a.src = "/menu/system_light.gif"
system_b= new Image();
system_b.src = "/menu/system.gif"

animation_a= new Image();
animation_a.src = "/menu/animation_light.gif"
animation_b= new Image();
animation_b.src = "/menu/animation.gif"

beschreibung_a= new Image();
beschreibung_a.src = "/menu/beschreibung_light.gif"
beschreibung_b= new Image();
beschreibung_b.src = "/menu/beschreibung.gif"

beschreibung_a= new Image();
beschreibung_a.src = "/menu/news_light.gif"
beschreibung_b= new Image();
beschreibung_b.src = "/menu/news.gif"

kontakt_a= new Image();
kontakt_a.src = "/menu/kontakt_light.gif"
kontakt_b= new Image();
kontakt_b.src = "/menu/kontakt.gif"

kunde01_a= new Image();
kunde01_a.src = "/kunden/01_grey.jpg"
kunde01_b= new Image();
kunde01_b.src = "/menu/01.jpg"

kunde02_a= new Image();
kunde02_a.src = "/kunden/02_grey.jpg"
kunde02_b= new Image();
kunde02_b.src = "/menu/02.jpg"

kunde03_a= new Image();
kunde03_a.src = "/kunden/03_grey.jpg"
kunde03_b= new Image();
kunde03_b.src = "/menu/03.jpg"

kunde04_a= new Image();
kunde04_a.src = "/kunden/04_grey.jpg"
kunde04_b= new Image();
kunde04_b.src = "/menu/04.jpg"