image01a = new Image;
image01a.src = "images/skikurs-busse.gif";

image01b = new Image;
image01b.src = "images/busse-skikurs.gif";

image02a = new Image;
image02a.src = "images/busvermietung-wien.gif";

image02b = new Image;
image02b.src = "images/wien-busvermietung.gif";

image03a = new Image;
image03a.src = "images/busvermietung-baden.gif";

image03b = new Image;
image03b.src = "images/baden-busvermietung.gif";

image04a = new Image;
image04a.src = "images/webdesign-wien.gif";

image04b = new Image;
image04b.src = "images/wien-webdesign.gif";