function redirect(url) {
            location.href = url;
}

function lightup(divs){
    obj=document.getElementById(divs);
    if (obj.className=='nyilup') { obj.className='nyildown'; } else { obj.className='nyilup'; }
}

function scrollup() {
    document.getElementById('scroller').scrollLeft-=2
}

function scrolldown() {
    document.getElementById('scroller').scrollLeft+=2
}