/*****

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;

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

  css = d.createElement("link");
  css.setAttribute("href","css/fade.css");
  css.setAttribute("rel","stylesheet");
  css.setAttribute("type","text/css");
  d.getElementsByTagName("head")[0].appendChild(css);

  imgs = d.getElementById("intro").getElementsByTagName("img");
  for(i=1;i<imgs.length;i++) imgs[i].xOpacity = 0;
  imgs[0].style.display = "block";
  imgs[0].xOpacity = 100;

  setTimeout(so_xfade,3000);
}

function so_xfade() {
  cOpacity = imgs[current].xOpacity;
  nIndex = imgs[current+1]?current+1:0;

  nOpacity = imgs[nIndex].xOpacity;

  cOpacity-=.05;
  nOpacity+=.05;

  imgs[nIndex].style.display = "block";
  imgs[current].xOpacity = cOpacity;
  imgs[nIndex].xOpacity = nOpacity;

  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>1) {
      obj.xOpacity = 1;
      return;
    }
    obj.style.opacity = obj.xOpacity;
    obj.style.MozOpacity = obj.xOpacity;
    obj.style.filter = "alpha(opacity=" + (obj.xOpacity*100) + ")";
  }
}