var grid_back = '';
var grid_blokada = false;
var grid_old = '';
function grid_nad(a, css) {
    if (grid_blokada) return;
    grid_old = a.className;
    if (grid_old == '') return;
    if (grid_old == 'zaznaczony') a.className = 'zaznaczony ' + css;
    else a.className = css;
    grid_blokada = true;
    a.onclick = function() { gridClick(a); }
}
function grid_ponad(a, css) {
    if (!grid_blokada) return;
    a.className = grid_old;
    grid_blokada = false;
}
function grid_nad_input(a, css) {
    grid_back = a.parentNode.parentNode.className;
    a.parentNode.parentNode.className = css;
    grid_blokada = true;
}
function grid_ponad_input(a) {
    a.parentNode.parentNode.className = grid_back;
    grid_blokada = false;
}
function gridClick(a) {
    window.location.href = a.getElementsByTagName('a')[0].href;
}