foo1=new Image();
foo1.src="elemek/foo_link1.jpg";
foo2=new Image();
foo2.src="elemek/foo_link2.jpg";

fal1=new Image();
fal1.src="elemek/fal_link1.jpg";
fal2=new Image();
fal2.src="elemek/fal_link2.jpg";

fot1=new Image();
fot1.src="elemek/fot_link1.jpg";
fot2=new Image();
fot2.src="elemek/fot_link2.jpg";

med1=new Image();
med1.src="elemek/med_link1.jpg";
med2=new Image();
med2.src="elemek/med_link2.jpg";

tud1=new Image();
tud1.src="elemek/tud_link1.jpg";
tud2=new Image();
tud2.src="elemek/tud_link2.jpg";

for1=new Image();
for1.src="elemek/for_link1.jpg";
for2=new Image();
for2.src="elemek/for_link2.jpg";

lin1=new Image();
lin1.src="elemek/lin_link1.jpg";
lin2=new Image();
lin2.src="elemek/lin_link2.jpg";

fel1=new Image();
fel1.src="elemek/fel1.jpg";
fel2=new Image();
fel2.src="elemek/fel2.jpg";

function be(nev, valtozo){
	document.images[nev].src=valtozo.src;
}