function zmniejszLink(link,element,kategoria){
    link.style.height = "58px";
    link.style.top = "10px";
    link.style.overflow = "hidden";
    link.style.borderStyle = "solid";

    element.style.marginTop = "-10px";

    switch(link.id){

        case "menuLinkStart":
            pole = window.document.getElementById("poleStart");
            pole.style.background = "url('images/dzien/menu_start"+ (kategoria==-1?"_a":"") +"_pl.jpg')";
            break;

       case "menuLinkOmnie":
            pole = window.document.getElementById("poleOmnie");
            pole.style.background = "url('images/dzien/menu_omnie"+ (kategoria=="omnie"?"_a":"") +"_pl.jpg')";
            break;

       case "menuLinkOferta":
            pole = window.document.getElementById("poleOferta");
            pole.style.background = "url('images/dzien/menu_oferta"+ (kategoria=="oferta"?"_a":"") +"_pl.jpg')";
            break;

       case "menuLinkPortfolio":
            pole = window.document.getElementById("polePortfolio");
            pole.style.background = "url('images/dzien/menu_portfolio"+ (kategoria=="portfolio"?"_a":"") +"_pl.jpg')";
            break;

       case "menuLinkKontakt":
            pole = window.document.getElementById("poleKontakt");
            pole.style.background = "url('images/dzien/menu_kontakt"+ (kategoria=="kontakt"?"_a":"") +"_pl.jpg')";
            break;
    }
}

function powiekszLink(link,element){
    link.style.height = "68px";
    link.style.top = "0px";
    link.style.overflow = "auto";
    link.style.borderTop = "0px";
    link.style.borderStyle = "solid";
    
    element.style.marginTop = "0px";
}