$(document).ready(function(){
  if($('.progetti-box').length>1)
  {
    <!--$('.progetti-buttons').append('<div class="node-projectpagelist-buttons-more"><a href="index.php?q=projects">More Projects</a></div>');-->
    $('.progetti-buttons').append('<span onclick="node_projectpagelist_project_prev()"><img src="immagini/single_arrow_left.gif" alt=""/></span>');
    $('.progetti-box').each(function(i){
      if(i>0)
      {
        $(this).css('display','none');
        $('.progetti-buttons').append('<span onclick="node_projectpagelist_project_swap('+i+')">'+(i+1)+'</span>');
      }
      else
      {
        $(this).css('display','block');
        $('.progetti-buttons').append('<span class="active-number" onclick="node_projectpagelist_project_swap('+i+')">'+(i+1)+'</span>');
      }
      //$('.node-projectpagelist-buttons').append('<span onclick="node_projectpagelist_project_swap('+i+')">'+(i+1)+'</span>');
    });
    $('.progetti-buttons').append('<span onclick="node_projectpagelist_project_next()"><img src="immagini/single_arrow_right.gif" alt=""/></span>');
  }
});

function node_projectpagelist_project_swap(j)
{
  if(j!=node_projectpagelist_project_current())
  {
    $('.progetti-box').each(function(i){
      if(i==j)
      {
        $(this).css('display','block');
        $($('.progetti-buttons span')[i+1]).addClass('active-number');
      }
      else
      {
        $(this).css('display','none');
        $($('.progetti-buttons span')[i+1]).removeClass('active-number');
      }
    });
  }
}

function node_projectpagelist_project_current()
{
  var retval = 0;
  $('.progetti-box').each(function(i){
    if($(this).css('display')=="block")
      retval = i;
  });
  return retval;
}

function node_projectpagelist_project_prev()
{
  var j = node_projectpagelist_project_current();
  if( j>0 )
  {
    node_projectpagelist_project_swap(j-1);
  }
}

function node_projectpagelist_project_next()
{
  var j = node_projectpagelist_project_current();
  var l = $('.progetti-box').length;
  if( j<(l-1) )
  {
    node_projectpagelist_project_swap(j+1);
  }
}