function photofader(nm, mainDiv, imgArr){
	this.name		= nm;
	this.imgArr = imgArr;
	this.curImg = 0;
	this.curDiv = 1;

	var mainDv = document.getElementById(mainDiv);

	document.pfObj = this;

	document.write("<style type='text/css'>\n");
	document.write("#pf_photo1 img { visibility:hidden; }\n");
	document.write("#pf_photo1 { position:absolute; z-index: 1; }\n");
	document.write("#pf_photo2 { position:absolute; z-index: 0; }\n");
	document.write("</style>");

	this.initImages = function() {
		var hldr1 = "pf_photo1";
		var hldr2 = "pf_photo2";

		var dv1 = document.createElement("div");
				dv1.id = "pf_photo1";
				dv1.innerHTML = "<img src='"+ imgArr[0] +"' />";
		var dv2 = document.createElement("div");
				dv2.id = "pf_photo2";

		mainDv.appendChild(dv1);
		mainDv.appendChild(dv2);

	  image1 = document.getElementById(hldr1).childNodes[0];

	  setOpacity(image1, 0);
	  image1.style.visibility = 'visible';
	  fadeIn(hldr1,0);
	}

	this.initImages();
}

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).childNodes[0];
    if (opacity < 100) {
			speed = (speed < 2)?2:speed;
      setOpacity(obj, opacity);
			opacityDif = Math.ceil((100-opacity)/speed);
			opacity += opacityDif;
      //opacity += 2;
      window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 100);
    }
		else
			setTimeout("swapImages()",delay*1000);
  }
}

function swapImages(){
	// find out which
	if(document.pfObj.curImg == document.pfObj.imgArr.length-1)
		document.pfObj.curImg = 0;
	else
		++document.pfObj.curImg;

	// now get the div to hold the new image
	var dvName	= (document.pfObj.curDiv == 1)?"pf_photo2":"pf_photo1";
	var eDivName		= (document.pfObj.curDiv == 1)?"pf_photo1":"pf_photo2";
	document.pfObj.curDiv = (document.pfObj.curDiv == 1)?2:1;

	var tgtDiv = document.getElementById(dvName);
	var eDiv = document.getElementById(eDivName);

	// now fill the target div
	tgtDiv.innerHTML = "<img src='"+ document.pfObj.imgArr[document.pfObj.curImg] +"' style='visibility:hidden;' />";

	//move the divs around in z-index
	eDiv.style.zIndex = 0;
	tgtDiv.style.zIndex = 1;

	// And finally fade in the image

  var img = tgtDiv.childNodes[0];

  setOpacity(img, 0);
  img.style.visibility = 'visible';
  fadeIn(tgtDiv.id,0);
}

var speed = 10; // Lower numbers yield a faster transition - must be 2 or higher
var delay = 3;	// Number of seconds between each slide transition