function img_over(el, name) {
    el.src = "grafika/" + name + "_active.png";
}

function img_out(el, name) {
    el.src = "grafika/" + name + ".png";
}

function button_over(el, name) {
    el.style.background = "url(grafika/" + name + "_active.png)";
    el.style.color = "#db4704";
}

function button_out(el, name) {
    el.style.background = "url(grafika/" + name + ".png)";
    el.style.color = "#ffffff";
}