function initSqueeze()
{
  SqueezeBox.initialize({
        size: {x: 350, y: 400}
    });
 
    /**
     * Assign SqueezeBox to all links with rel="boxed" attribute, the class then reads the "href".
     */
    SqueezeBox.assign($$('a[rel=boxed]'));
}

function showHideCats(id)
{
  $$('div.vacature-category').each(function(el){
    el.setStyle('display', 'none');
  });

  $('vaccat-'+id).setStyle('display', '');
}