if (document.images) {
    img1_open           = new Image();
    img1_closed         = new Image();
    img2_open           = new Image();
    img2_closed         = new Image();

    img3_open           = new Image();
    img3_closed         = new Image();

    img4_open           = new Image();
    img4_closed         = new Image();

    img5_open           = new Image();
    img5_closed         = new Image();

    img6_open           = new Image();
    img6_closed         = new Image();

    img7_open           = new Image();
    img7_closed         = new Image();

    img8_open           = new Image();
    img8_closed         = new Image();

    img9_open           = new Image();
    img9_closed         = new Image();

    img10_open           = new Image();
    img10_closed         = new Image();
   
    img1_closed.src      = "img/strona_glowna_off.jpg";
    img1_open.src    = "img/strona_glowna_on.jpg";
    
    img2_closed.src      = "img/cele_przedszkola_off.jpg";
    img2_open.src    = "img/cele_przedszkola_on.jpg";

    img3_closed.src      = "img/oferta_off.jpg";
    img3_open.src    = "img/oferta_on.jpg";
    
    img4_closed.src      = "img/zajecia_dodatkowe_off.jpg";
    img4_open.src    = "img/zajecia_dodatkowe_on.jpg";

    img5_closed.src      = "img/u_nas_w_przeszkolu_off.jpg";
    img5_open.src    = "img/u_nas_w_przeszkolu_on.jpg";
    
    img6_closed.src      = "img/kadra_off.jpg";
    img6_open.src    = "img/kadra_on.jpg";

    img7_closed.src      = "img/galeria_off.jpg";
    img7_open.src    = "img/galeria_on.jpg";
    
    img8_closed.src      = "img/wosp_off.jpg";
    img8_open.src    = "img/wosp_on.jpg";

    img9_closed.src      = "img/artykuly_dla_rodzicow_off.jpg";
    img9_open.src    = "img/artykuly_dla_rodzicow_on.jpg";

    img10_closed.src      = "img/aktualnosci_off.jpg";
    img10_open.src    = "img/aktualnosci_on.jpg";
}


function over(i)
{
    if (document.images)
        eval('document.img'+i+'.src=img'+i+'_open.src');
}

function out(k)
{
    if (document.images)
        eval('document.img'+k+'.src=img'+k+'_closed.src');
}