visiemissie = new Image();
visiemissie.src = "/images/topmenu/01_hover.jpg";

prog_prod = new Image();
prog_prod.src = "/images/topmenu/02_hover.jpg";

pers_media = new Image();
pers_media.src = "/images/topmenu/03_hover.jpg";

contact_meer = new Image();
contact_meer.src = "/images/topmenu/04_hover.jpg";

facts_figures = new Image();
facts_figures.src = "/images/topmenu/05_hover.jpg";