var currentBlock = false;

function swapBlock(blockID) {
  if (blockID != currentBlock) {
    if (currentBlock !== false) {
      Effect.Fade('block' + currentBlock);
    }
    Effect.SlideDown('block' + blockID);
    currentBlock = blockID;
  }
}
function showDetailMenu(element)
{
  $('menu_detail').innerHTML = dictionnaire[element];
  $('menu_detail').style.display = 'block';
}

function hideDetailMenu()
{
  $('menu_detail').innerHTML = '';
  $('menu_detail').style.display = 'none';
}

function makevisible(element,which)
{
  if(document.getElementById) {
    if (which == 0)
    {
      if (document.all) $(element).filters.alpha.opacity = 100;
      else $(element).style.setProperty("-moz-opacity", 1, "");
    }
    else
    {
      if (document.all) $(element).filters.alpha.opacity = 30;
      else $(element).style.setProperty("-moz-opacity", .3, "");
    }
  }
}

function swapVideo(youtubeId, title, url)
{
  $('video').style.display = 'none';

  var so = new SWFObject("http://www.youtube.com/v/" + youtubeId, "youtube", 438, 366, 9, "#000000");
  so.addParam("quality", "high");
  so.addParam("wmode", "transparent");
  so.write("video");

  $('videoTitle').innerHTML = title;
  $('videoTitle').href = url;

  Effect.Appear('video');
}