a1 = new Image(140,31); a1.src = "navigatie/a1.gif";
a2 = new Image(140,31); a2.src = "navigatie/a2.gif";

b1 = new Image(140,31); b1.src = "navigatie/b1.gif";
b2 = new Image(140,31); b2.src = "navigatie/b2.gif";

c1 = new Image(140,31); c1.src = "navigatie/c1.gif";
c2 = new Image(140,31); c2.src = "navigatie/c2.gif";

d1 = new Image(140,31); d1.src = "navigatie/d1.gif";
d2 = new Image(140,31); d2.src = "navigatie/d2.gif";

e1 = new Image(140,31); e1.src = "navigatie/e1.gif";
e2 = new Image(140,31); e2.src = "navigatie/e2.gif";

f1 = new Image(140,31); f1.src = "navigatie/f1.gif";
f2 = new Image(140,31); f2.src = "navigatie/f2.gif";

g1 = new Image(140,31); g1.src = "navigatie/g1.gif";
g2 = new Image(140,31); g2.src = "navigatie/g2.gif";

h1 = new Image(140,31); h1.src = "navigatie/h1.gif";
h2 = new Image(140,31); h2.src = "navigatie/h2.gif";

i1 = new Image(140,31); i1.src = "navigatie/i1.gif";
i2 = new Image(140,31); i2.src = "navigatie/i2.gif";

y1 = new Image(140,31); y1.src = "navigatie/y1.gif";
y2 = new Image(140,31); y2.src = "navigatie/y2.gif";

z1 = new Image(90,23); z1.src = "images/z1.gif";
z2 = new Image(90,23); z2.src = "images/z2.gif";

function hiLite(imgDocID, imgObjName) { document.images[imgDocID].src = eval(imgObjName + ".src"); }