function loadBlock(id) {
	blockId = 'block_'+id;
  blockDiv = document.getElementById(blockId);

	for(i=0;i<6;i++) {
	  if(i == id) {
			blockDiv.style.display = ''; 
			setOpacity(blockDiv, 0);
			blockDiv.style.visibility = 'visible';			
			fadeIn(blockId,0);
		} else { 
			document.getElementById('block_'+i).style.display = "none";
		}
	}
}
function setOpacity(obj, opacity) {
  opacity = (opacity == 100)?99.999:opacity;
  // IE/Win
  obj.style.filter = "alpha(opacity:"+opacity+")";
  // Safari<1.2, Konqueror
  obj.style.KHTMLOpacity = opacity/100;
  // Older Mozilla and Firefox
  obj.style.MozOpacity = opacity/100;
  // Safari 1.2, newer Firefox and Mozilla, CSS3
  obj.style.opacity = opacity/100;
}
function fadeIn(objId,opacity) {
  if (document.getElementById) {
    obj = document.getElementById(objId);
    if (opacity <= 100) {
      setOpacity(obj, opacity);
      opacity += 10;
      window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 100);
    }
  }
}