SK_W = new Image();
    SK_B = new Image();
    SK_W.src = '/images/sk_rep.jpg';
    SK_B.src = '/images/sk_rep_hover.jpg';

    CZ_W = new Image();
    CZ_B = new Image();
    CZ_W.src = '/images/cz_rep.jpg';
    CZ_B.src = '/images/cz_rep_hover.jpg';

    HU_W = new Image();
    HU_B = new Image();
    HU_W.src = '/images/hungary.jpg';
    HU_B.src = '/images/hungary_hover.jpg';

    UA_W = new Image();
    UA_B = new Image();
    UA_W.src = '/images/ukraine.jpg';
    UA_B.src = '/images/ukraine_hover.jpg';

    function SKNormal(btn) {
        btn.src = SK_W.src;
    }
    function SKHover(btn) {
        btn.src = SK_B.src;
    }

    function CZNormal(btn) {
        btn.src = CZ_W.src;
    }
    function CZHover(btn) {
        btn.src = CZ_B.src;
    }

    function HUNormal(btn) {
        btn.src = HU_W.src;
    }
    function HUHover(btn) {
        btn.src = HU_B.src;
    }

    function UANormal(btn) {
        btn.src = UA_W.src;
    }
    function UAHover(btn) {
        btn.src = UA_B.src;
    }