var nieuwsblokkeneffect = [];
function activateNewsitem(n)
{
  var pos = 0;
  for (var i = 0; i < 3; i++) {
    if (nieuwsblokkeneffect[i]) {
      nieuwsblokkeneffect[i].cancel();
    }
    $('nieuwsblok-'+i).removeClassName('active-item');
    nieuwsblokkeneffect[i] = new Effect.Move('nieuwsblok-'+i, {
      x: 0,
      y: pos,
      mode: 'absolute',
      duration: 0.25
    })
    pos += 27;
    if (n == i) pos += 108;
  }
  $('nieuwsblok-'+n).addClassName('active-item');
}



//carroussel

function switchcarrousel(n)
{
  clearTimeout(carrouseltimer);
  for (var i = 0; i < 3; i++) {
    if (i == n) {
      //show
      $('carrousel-inner').removeClassName('carrousel0');
      $('carrousel-inner').removeClassName('carrousel1');
      $('carrousel-inner').removeClassName('carrousel2');
      $('carrousel-inner').addClassName('carrousel' + i);
      $('carrousel' + i).show();
      $('carrousel-menu' + i).addClassName('active-item');
    }
    else {
      //hide
      $('carrousel' + i).hide();
      $('carrousel-menu' + i).removeClassName('active-item');
    }
  }
  carrouseltimer = setTimeout('switchnextcarrousel()', 6000)
}

function switchnextcarrousel()
{
  var n = -1;
  for (var i = 0; i < 3; i++) {
    if ($('carrousel-menu' + i).hasClassName('active-item')) {
      n = i;
    }
  }
  n++;
  n = n % 3;
  switchcarrousel(n);
}

var carrouseltimer = setTimeout('switchnextcarrousel()', 6000);