function wopen(url, name, w, h)
{
// Fudge factors for window decoration space.
 // In my tests these work well on all platforms & browsers.
w += 32;
h += 96;
 var win = window.open(url,
  name,
  'width=' + w + ', height=' + h + ', ' +
  'location=no, menubar=no, ' +
  'status=no, toolbar=no, scrollbars=no, resizable=no');
 win.resizeTo(w, h);
 win.focus();
}


	
var putItThere = null;
var chasm = screen.availWidth;
var mount = screen.availHeight; //chasm and mount help calculate the center of the screen
	
function popupwindow (URL,popupWidth,popupHeight,name) 
{
			
if (popupWidth > chasm) {
popupWidth = chasm - 10;
}
if (popupHeight > mount) {
popupHeight = mount - 40;
}
			
putItThere = window.open(URL,name,"width=" + popupWidth + ",height=" + popupHeight + ",toolbar=$popwin_toolbar,directories=$popwin_directories,location=$popwin_location,status=$popwin_status,menubar=$popwin_menubar,resizable=$popwin_resizable,scrollbars=$popwin_scrollbars,left=" + ((chasm - popupWidth - 10) * .5) + ",top=" + ((mount - popupHeight - 30) * .5) + ",screenX=" + ((chasm - popupWidth - 10) * .5) + ",screenY=" + ((mount - popupHeight - 30) * .5));
}

  var gblPhotoShufflerDivId = "photodiv";
  var gblPhotoShufflerImgId = "photoimg"; 
  var gblImg = new Array(
    "images/2010_group.jpg",
    "images/2010_group_2.jpg",
    "images/DSCI0007.jpg"
    );
  var gblPauseSeconds = 7.25;
  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;
  
  function photoShufflerLaunch()
  {
  	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);
  }
 
  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
	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(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] + ')';
  }
 
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;
}