image1 = new Image();
image1.src = "images/button_Parkweest_OVER.jpg";

image2 = new Image();
image2.src = "images/button_contact_OVER.jpg";

image3 = new Image();
image3.src = "images/knop_bevestig_down.gif";

image4 = new Image();
image4.src = "images/knop_reset_down.gif";