function setTab(c, cursel, count) {
    for (i = 1; i <= count; i++) {
        var title = document.getElementById(c + "_t" + i);
        var tab = document.getElementById(c + "_p" + i);
        title.className = (i == cursel ? "hover" : "");
        tab.style.display = (i == cursel ? "block" : "none");
    }
}