var cycleCount = 0;
var pic1 = 0;
var pic2 = 0;
var pic3 = 0;

function showLayer(layerName) {
 		document.getElementById(layerName).style.display = 'block';
}

function hideLayer(layerName) {
 			document.getElementById(layerName).style.display = 'none';
}
function startFade()
{
	pickRandom();
	setTimeout("cycle()", 4000);
}
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 += 5;
      window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 50);
    }
  }
}
function fadeOut(objId,opacity) {
  if (document.getElementById) {
    obj = document.getElementById(objId);
    if (opacity >= 0) {
      setOpacity(obj, opacity);
      opacity -= 5;
      window.setTimeout("fadeOut('"+objId+"',"+opacity+")", 100);
    }
  }
}