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

	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, texte, loadedImages = 0, pourcentage ;
var accueil = true, dureePause = 3000;
 

function image_onload(nombreImages) {
  var p;
  loadedImages ++;
  p = Math.round(100*loadedImages/nombreImages);
  if(document) {
    pourcentage = document.getElementById('pourcentage');
   if(pourcentage) {
     pourcentage.innerHTML = p+'%';
     pourcentage.style.width = Math.round((p/100)*560)+'px';
   }
  }
}
function so_init(p, a)
{
	if(!d.getElementById || !d.createElement)return;
  if((p != undefined) && (a != undefined)) {
    dureePause = p*1000;
    accueil = a;
  }
  	css = d.createElement('link');
	css.setAttribute('href','slideshow2.css');
	css.setAttribute('rel','stylesheet');
	css.setAttribute('type','text/css');
	d.getElementsByTagName('head')[0].appendChild(css);

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

  // Cacher le texte "Chargement des images en cours..."
  texte = document.getElementById('texte-chargement');
  texte.style.display = 'none';
  
	setTimeout(so_xfade,dureePause);
}

function so_xfade()
{
	cOpacity = imgs[current].xOpacity;
	if (imgs[current+1]) {
    nIndex = current + 1;
  } else if(accueil == true) {
    document.location="index.php";
    return false;
  } else {
    return false;
  }
  //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,dureePause);
	}
	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) + ')';
	}
}