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/slides_fade.css");
  css.setAttribute("rel","stylesheet");
  css.setAttribute("type","text/css");
  d.getElementsByTagName("head")[0].appendChild(css);

  imgs = d.getElementById("slides_cont").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,4000);

}

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,4000);
  } 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) + ")";
  }

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