function zobrazit(name) {
    if (document.getElementById("p" + name)) {
 /*       for (i = 1; i < 100; i++) {
            if(i != name){
                var elem3 = document.getElementById("p" + i);
                elem3.style.display = "none";
                var elem4 = document.getElementById("pb" + i);
                elem4.src = "images/projects_open.png";
            }
        } */
        var elem = document.getElementById("p" + name);
        if (elem.style.display == "") {
            elem.style.display = "none";
        } else {
            elem.style.display = "";
        }
        var elem2 = document.getElementById("pb" + name);
        if (elem2) {
            if (elem.style.display == "") {
                elem2.src = "images/projects_close.png";
            } else {
                elem2.src = "images/projects_open.png";
            }
        }
    }
}