img1 = new Image(); img1.src = "Images/tlacitko_sport_channel_mouseover_75x34.png";
img2 = new Image(); img2.src = "Images/tlacitko_zive_vysilani_mouseover_75x34.png";
img3 = new Image(); img3.src = "Images/tlacitko_novy_videoklip_mouseover_75x34.png";
img4 = new Image(); img4.src = "Images/tlacitko_nove_na_you_tube_mouseover_75x34.png";
img5 = new Image(); img5.src = "Images/tlacitko_fotbalova_pravidla_mouseover_75x34.png";
img6 = new Image(); img6.src = "Images/tlacitko_facebook_pripoj_se_mouseover_150x90.png";

function zamen(nazev_img, novy_img) { document.images[nazev_img].src = novy_img; }