// JavaScript Document

  var gblPhotoShufflerDivId = "photodiv";
  var gblPhotoShufflerImgId = "photoimg"; 
  var gblImg = new Array(
    "images/home/plain/photo1.jpg",
    "images/home/plain/photo2.jpg",
    "images/home/plain/photo3.jpg",
    "images/home/plain/photo4.jpg",
    "images/home/plain/photo5.jpg",
    "images/home/plain/photo6.jpg"
    );
	
	

  var gblPauseSeconds = 3.00;
  var gblFadeSeconds = .85;
  var gblRotations = 1;

  // End Customization section
  
  var gblDeckSize = gblImg.length;
  var gblOpacity = 100;
  var gblOnDeck = 0;
  var gblStartImg;
  var gblImageRotations = gblDeckSize * (gblRotations+1);

  //window.onload = photoShufflerLaunch;
  
  var globalOutput;
  
  function photoShufflerLaunch()
  {
      globalOutput = document.getElementById("outDiv");
	  
	  var theimg = document.getElementById(gblPhotoShufflerImgId);
        gblStartImg = theimg.src; // save away to show as final image

    document.getElementById(gblPhotoShufflerDivId).style.backgroundImage='url(' + gblImg[gblOnDeck] + ')';
    //setTimeout("photoShufflerFade()",gblPauseSeconds*1000);
	photoShufflerFade();
  }

  function photoShufflerFade()
  {
      var theimg = document.getElementById(gblPhotoShufflerImgId);
    
      // determine delta based on number of fade seconds
    // the slower the fade the more increments needed
        var fadeDelta = 100 / (30 * gblFadeSeconds);

    // fade top out to reveal bottom image
	
	globalOutput.innerHTML = gblOpacity;
	
    if (gblOpacity < 2*fadeDelta ) 
    {
      gblOpacity = 100;
      // stop the rotation if we're done
      //if (gblImageRotations < 1) return;
      photoShufflerShuffle();
      // pause before next fade
          setTimeout("photoShufflerFade()",gblPauseSeconds*1000);
    }
    else
    {
      gblOpacity -= fadeDelta;
      setOpacity(theimg,gblOpacity);
      setTimeout("photoShufflerFade()",30);  // 1/30th of a second
    }
  }

  function photoShufflerShuffle()
  {
    var thediv = document.getElementById(gblPhotoShufflerDivId);
    var theimg = document.getElementById(gblPhotoShufflerImgId);
    
    // copy div background-image to img.src
    theimg.src = gblImg[gblOnDeck];
    // set img opacity to 100
    //setOpacity(thediv,0);
	setOpacity(theimg,100);
	

        // shuffle the deck
    gblOnDeck = ++gblOnDeck % gblDeckSize;
    // decrement rotation counter
    if (gblImageRotations < 1)
    {
      // insert start/final image if we're done
      gblImg[gblOnDeck] = gblStartImg;
    }

    // slide next image underneath
    thediv.style.backgroundImage='url(' + gblImg[gblOnDeck] + ')';
	//setOpacity(thediv,0);
  }

  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;
  }