function goTo(page, direction) {
    var wantedId = "p" + page; 
    var startingPoint = document.getElementById(wantedId);
    var node = startingPoint;
    switch (direction) {
        case "n":
            do {
                node=node.nextSibling;
            } while (!(node.className=="spis_tytul")) ;
            break;
        case "p":
            do {
                node=node.previousSibling;
            } while (!(node.className=="spis_tytul")) ;
    }
    window.location=node.firstChild.href;
}
function redirect() {
    if (location.search) document.body.style.display = "none";
    var page = window.location.search.substr(1,2);
    var direction = window.location.search.substr(3,3);
    if (page && direction) {
        goTo(page,direction)
    }
}

window.onload = redirect;