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);
    }
  }
}

function fadeOut(objId,opacity) {
  if (document.getElementById) {
    obj = document.getElementById(objId);
    if (opacity >= 0) {
      setOpacity(obj, opacity);
      opacity = opacity - 1;
      window.setTimeout("fadeOut('"+objId+"',"+opacity+")", 100);
    }
  }
}

function resetOpacity(objId){
    obj = document.getElementById(objId);
    setOpacity(obj, 0);
}

function timeLine(){
    if (pass == 1){
    fadeIn('part1', 0);
    setTimeout('timeLine()', 5000);
    }
    if (pass == 2){
    fadeIn('part2', 0);
    setTimeout('timeLine()', 5000);
    }
    if (pass == 3){
    fadeIn('part3', 0);
    setTimeout('timeLine()', 1000);
    };
    if (pass == 4){
    fadeIn('part4', 0);
    setTimeout('timeLine()', 1000);
    }
    if (pass == 5){
    fadeIn('part5', 0);
    setTimeout('timeLine()', 1000);
    }
    pass += 1;
}

function start(){
    pass = 1;
    setTimeout('timeLine()', 150);
}