af1 = new Image();
af1.src = "../img/aktion_f1.jpg"; 
af2 = new Image();
af2.src = "../img/aktion_f2.jpg"; 
af3 = new Image();
af3.src = "../img/aktion_f3.jpg"; 
af4 = new Image();
af4.src = "../img/aktion_f4.jpg"; 

ad1 = new Image();
ad1.src = "../img/aktion_details1.jpg"; 
ad4 = new Image();
ad4.src = "../img/aktion_details2.jpg"; 
ad2 = new Image();
ad2.src = "../img/aktion_details3.jpg"; 
ad3 = new Image();
ad3.src = "../img/aktion_details4.jpg";

d1 = new Image();
d1.src = "../img/details_link_active.gif"; 
d2 = new Image();
d2.src = "../img/details_link_inactive.gif";