function makeC(obrazok) {obrazok.src="pictures/home.jpg"}
function makeN(obrazok) {obrazok.src="pictures/home2.jpg"}
function makeC1(obrazok2) {obrazok2.src="pictures/stud.jpg"}
function makeN1(obrazok2) {obrazok2.src="pictures/stud2.jpg"}
function makeC2(obrazok3) {obrazok3.src="pictures/kurzy.jpg"}
function makeN2(obrazok3) {obrazok3.src="pictures/kurzy2.jpg"} 
function makeC3(obrazok4) {obrazok4.src="pictures/juniori.jpg"}
function makeN3(obrazok4) {obrazok4.src="pictures/juniori2.jpg"} 
function makeC4(obrazok5) {obrazok5.src="pictures/cennik.jpg"}
function makeN4(obrazok5) {obrazok5.src="pictures/cennik2.jpg"} 
function makeC5(obrazok6) {obrazok6.src="pictures/kontakt.jpg"}
function makeN5(obrazok6) {obrazok6.src="pictures/kontakt2.jpg"}