function updateCarousel(direction, portfolio_id, cur_entry) {
  var page_num = 1;
  var total = parseInt($('carousel_count').get('text'));

  if (direction=="next"){
    page_num = parseInt($('carousel_page_num').get('text'))+1;
    //alert()
  } else  if (direction=="prev"){
    page_num = parseInt($('carousel_page_num').get('text'))-1;
  } else {
  	alert("!!!");
  }

  if (page_num < 1){
        page_num = total;
  }
  if (page_num > total){
        page_num = 1;
  }

  $('carousel_page_num').set('text', page_num);

  new Request.HTML({
    method: 'get',
    url: 'ajax_portfolio_carousel.php',
    data: { 'do': '1' },
    update:'portfolio_carousel',
    onRequest:function(){$('portfolio_carousel').fade('0')},
    onComplete:function(){$('portfolio_carousel').fade('1')}
  }).send('p='+page_num+'&portfolio_id='+portfolio_id+'&cur_entry='+cur_entry);

}


function showCarousel(page_num, portfolio_id, cur_entry) {
  new Request.HTML({
    method: 'get',
    url: 'ajax_portfolio_carousel.php',
    data: { 'do': '1' },
    update:'portfolio_carousel',
    onRequest:function(){$('portfolio_carousel').fade('0')},
    onComplete:function(){$('portfolio_carousel').fade('1')}
  }).send('p='+page_num+'&portfolio_id='+portfolio_id+'&cur_entry='+cur_entry);

}