function otevri_max(url, wn, w, h, scrolls)
{
    var vlevo = (screen.width-w)/2;
    var zhora = (screen.height-h)/2;
    okno = window.open(url, wn,'resizable=0,top=' + zhora + ',left=' + vlevo + ',menubar=0,scrollbars=' + scrolls + ',width=' + w + ',height=' + h);
    okno.focus()
}

function seth()
{
    document.getElementById('lp').style.color = '#FF0000';
    document.getElementById('rp').style.color = '#FF0000';
    document.getElementById('lp').innerHTML = '<b>&raquo;</b>';
    document.getElementById('rp').innerHTML = '<b>&laquo;</b>';
}

function unseth()
{
    document.getElementById('lp').style.color = '#FFFF82';
    document.getElementById('rp').style.color = '#FFFF82';
    document.getElementById('lp').innerHTML = '~';
    document.getElementById('rp').innerHTML = '~';
}

function highlight_gallery(ptr, state)
{
    if(state)
        ptr.style.backgroundColor = '#EBEBEB';
    else
        ptr.style.backgroundColor = '#FFFFFF';
}