var imgList;addListenner(window, "load", briensSlideShow, true);imgList = ["pict-36171-s.jpg", "pict-34103-s.jpg", "pict-34234-s.jpg", "pict-34158-s.jpg", "pict-34203-s.jpg", "pict-34165-s.jpg", "pict-34218-s.jpg", "pict-36466-s.jpg", "pict-36634-s.jpg", "pict-34175-s.jpg"];var slideId = "portrait";

var delaiChangement = 5000;   // en millisecondes
var intervalDisparition = 70; // plus petit = transition plus rapide
var pasDisparition  = .2; // le pas de changement de la transparence

var currentState = 0; currentImg = 1;
var imgContainer;
var imgPath = '';
var slideInterval, fadeInterval;



/**
 * mySlideShow
 */
 function briensSlideShow()
 {
   if (!document.getElementById || !document.getElementsByTagName) {
     return false;
   }
   imgContainer = document.getElementById(slideId);
   if (!imgContainer) {
     return false;
   }

   var tagImg = imgContainer.getElementsByTagName('img');


   // find the correct image path
   var imgTag1 = tagImg[0]; //document.getElementById('slideshowimg-1');
   imgPath = imgTag1;
    if (imgPath && imgPath.src) {
      var parts = imgPath.src.split('/');
      parts.pop();
      imgPath = parts.join('/') + '/';

    } else {
      imgPath = 'img/';
    }


   // preloading images
   for (var i = 0; i < imgList.length; i ++) {
      var image = new Image();
      image.src = imgPath + imgList[i];
   }

   var imgTag  = tagImg[0]; //document.getElementById('slideshowimg-1');
   var imgTag2 = tagImg[1]; //document.getElementById('slideshowimg-2');
   imgTag.style.opacity  = 1;
   imgTag2.style.opacity = 1;
   imgTag.style.zindex   = 1;
   imgTag2.style.zindex  = 50;

   slideInterval = setInterval(changeImg, delaiChangement);

 } // end of "briensSlideShow()"



 /**
  * changeImg
  */
  function changeImg()
  {
     if (!imgContainer) {
       return false;
     }
     var tagImg = imgContainer.getElementsByTagName('img');
     var imgTag = tagImg[0]; //document.getElementById('slideshowimg-1');
     var imgTag2 = tagImg[1]; //document.getElementById('slideshowimg-2');
     if (!imgList[currentImg]) {
       currentImg = 0;
     }
     if (imgList[currentImg]) {
        imgTag.src = imgPath + imgList[currentImg];
     }
     currentImg++;
     fadeInterval = setInterval(disapearImg, intervalDisparition);

  } // end of "changeImg()"



 /**
  * disapearImg
  */
  function disapearImg()
  {
     var tagImg = imgContainer.getElementsByTagName('img');
     var imgTag = tagImg[0]; //document.getElementById('slideshowimg-1');
     var imgTag2 = tagImg[1]; //document.getElementById('slideshowimg-2');

     imgTag2.style.opacity -= pasDisparition;
     imgTag2.style.filter   = 'alpha(opacity=' + (imgTag2.style.opacity * 100) + ')';

  	 if (imgTag2.style.opacity <= 0) {
  	   imgTag2.src = imgTag.src;
       imgTag2.style.opacity = 1;
       imgTag2.style.filter  = 'alpha(opacity=100)';
  	   clearInterval(fadeInterval);
  	 }
  } // end of "disapearImg()"