/*****

Image Cross Fade Redux
Version 1.0
Last revision: 02.15.2006
steve@slayeroffice.com

Please leave this notice intact. 

Rewrite of old code found here: http://slayeroffice.com/code/imageCrossFade/index.html


*****/


window.addEventListener ? window.addEventListener("load", so_init, false) : window.attachEvent("onload", so_init);

var d = document, imgs = new Array(), zInterval = null, current = 0, pause = false, iTile = -1;

function so_init() {
  if (!d.getElementById || !d.createElement) return;

  // DON'T FORGET TO GRAB THIS FILE AND PLACE IT ON YOUR SERVER IN THE SAME DIRECTORY AS THE JAVASCRIPT!
  // http://slayeroffice.com/code/imageCrossFade/xfade2.css
  css = d.createElement("link");
  css.setAttribute("href", "/css/xfade2.css");
  css.setAttribute("rel", "stylesheet");
  css.setAttribute("type", "text/css");
  d.getElementsByTagName("head")[0].appendChild(css);

  imgs = d.getElementById("imageContainer").getElementsByTagName("img");
  for (i = 1; i < imgs.length; i++) imgs[i].xOpacity = 0;
  imgs[0].style.display = "block";
  imgs[0].xOpacity = .99;  

  setTimeout(so_xfade, 500);
}

function so_xfade() {
  cOpacity = imgs[current].xOpacity;
  if (iTile > -1) {
    nIndex = iTile;    
  }
  else {
    nIndex = imgs[current + 1] ? current + 1 : 0;    
  }

  nOpacity = imgs[nIndex].xOpacity;

  if (iTile > -1) {
    cOpacity -= .1;
    nOpacity += .1;
  }
  else {
    cOpacity -= .05;
    nOpacity += .05;
  }

  imgs[nIndex].style.display = "block";
  imgs[current].xOpacity = cOpacity;
  imgs[nIndex].xOpacity = nOpacity;
  imgs[nIndex].width = 726;
  imgs[nIndex].height = 401;

  setOpacity(imgs[current]);
  setOpacity(imgs[nIndex]);

  if (cOpacity <= 0) {
    imgs[current].style.display = "none";
    current = nIndex;
    setTimeout(so_xfade, 3000);
  } else {
    setTimeout(so_xfade, 50);
  }

  function setOpacity(obj) {
    if (obj.xOpacity > .99) {
      obj.xOpacity = .99;
      return;
    }
    obj.style.opacity = obj.xOpacity;
    obj.style.MozOpacity = obj.xOpacity;
    obj.style.filter = "alpha(opacity=" + (obj.xOpacity * 100) + ")";
  }

}