img1 = new Image();
img1.src = "images/activities1.gif";

img2 = new Image();
img2.src = "images/activities2.gif";

img3 = new Image();
img3.src = "images/resources1.gif";

img4 = new Image();
img4.src = "images/resources2.gif";

img5 = new Image();
img5.src = "images/hsc1.gif";

img6 = new Image();
img6.src = "images/hsc2.gif";

img7 = new Image();
img7.src = "images/dyk1.gif";

img8 = new Image();
img8.src = "images/dyk2.gif";