var currentPhoto = 0;
var secondPhoto = 1;

var currentOpacity = new Array();
var imageArray = new Array("images/header1.jpg","images/header2.jpg","images/header3.jpg")

var FADE_STEP = 0.7;
var FADE_INTERVAL = 5;
var pause = false;

function init() {
	currentOpacity[0]=99;
	for(i=1;i<imageArray.length;i++)currentOpacity[i]=0;
	mHTML="";
	for(i=0;i<imageArray.length;i++) {
		mHTML+="<div id=\"photo\" name=\"photo\" class=\"mPhoto\"><img src=\"" + imageArray[i]  +"\"></div>";
	}
	document.getElementById("mContainer").innerHTML = mHTML;
	if(document.all) {
		document.getElementsByName("photo")[currentPhoto].style.filter="alpha(opacity=100)";
	} else {
		document.getElementsByName("photo")[currentPhoto].style.MozOpacity = .99;
		for(i=0;i<imageArray.length;i++) {
		   document.getElementsByName("photo")[i].style.MozOpacity = .0;
		}	
	}	
	mInterval = setInterval("crossFade()",FADE_INTERVAL);
	if(document.all) {
	   FADE_STEP = 2;
	}
	else
	{
	   FADE_STEP = 0.5;
	}
}

function crossFade() {
	if(pause)return;

	currentOpacity[currentPhoto]-=FADE_STEP;
	currentOpacity[secondPhoto] += FADE_STEP;

	if(document.all) {
		document.getElementsByName("photo")[currentPhoto].style.filter = "alpha(opacity=" + currentOpacity[currentPhoto] + ")";
		document.getElementsByName("photo")[secondPhoto].style.filter = "alpha(opacity=" + currentOpacity[secondPhoto] + ")";
	} else {
		document.getElementsByName("photo")[currentPhoto].style.MozOpacity = currentOpacity[currentPhoto]/100;
		document.getElementsByName("photo")[secondPhoto].style.MozOpacity =currentOpacity[secondPhoto]/100;
	}
	if(currentOpacity[secondPhoto]/100>=.98) {
		currentPhoto = secondPhoto;
		secondPhoto++;
		if(secondPhoto == imageArray.length)secondPhoto=0;
		pause = true;
		xInterval = setTimeout("pause=false",3000);
	}
}


function addLoadListener(fn)
{
  if (typeof window.addEventListener != 'undefined')
  {
    window.addEventListener('load', fn, false);
  }
  else if (typeof document.addEventListener != 'undefined')
  {
    document.addEventListener('load', fn, false);
  }
  else if (typeof window.attachEvent != 'undefined')
  {
    window.attachEvent('onload', fn);
  }
}
addLoadListener(init);