function change(url)
{
  
  var x = document.getElementById("imag");
  x.setAttribute("src", url);
}
function getScrollXY() {
  var scrOfX = 0, scrOfY = 0;
  if( typeof( window.pageYOffset ) == 'number' ) {
    //Netscape compliant
    scrOfY = window.pageYOffset;
    scrOfX = window.pageXOffset;
  } else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
    //DOM compliant
    scrOfY = document.body.scrollTop;
    scrOfX = document.body.scrollLeft;
  } else if( document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
    //IE6 standards compliant mode
    scrOfY = document.documentElement.scrollTop;
    scrOfX = document.documentElement.scrollLeft;
  }
  return scrOfY;
}
function getH(){
var h;
if(document.innerHeight){ h=document.innerHeight;
} else if(document.documentElement.clientHeight){ h=document.documentElement.clientHeight;
} else if(document.body){ h=document.body.clientHeight; }
return h;
}

function afficheMaxi(chemin)
  {
  i1 = new Image;
  i1.src = chemin;
  html = '<HTML><HEAD><TITLE>VISUALISATION</TITLE></HEAD><BODY LEFTMARGIN=0 MARGINWIDTH=0 TOPMARGIN=0 MARGINHEIGHT=0><CENTER><IMG SRC="'+chemin+'" BORDER=0 NAME=imageTest onLoad="window.resizeTo(document.imageTest.width+14,document.imageTest.height+62)"></CENTER></BODY></HTML>';
  popupImage = window.open('','_blank','left=0,top=0,toolbar=0,location=0,directories=0,menuBar=0,scrollbars=0,resizable=1');
  popupImage.document.open();
  popupImage.document.write(html);
  popupImage.document.close()
  }
function box(url,url1) {
    bod                 = document.getElementsByTagName('body')[0];
    overlay             = document.createElement('div');
    overlay.id      = 'overlay';
    lb                  = document.createElement('div');
    lb.id               = 'lightbox';
	
    lb.className    = 'loading';
    lb.innerHTML    = '<div id="lbLoadMessage">' +
                          '<div id="txt_bas"></div><center><a href="#" onClick="bod.removeChild(overlay);bod.removeChild(lb);"><img id="imag" src="'+url+'" alt=""  /></a></center>' +
                          '</div>';
    bod.appendChild(overlay);
    bod.appendChild(lb);
  // contenu_pop(num,url);
}  
function retour(id) {
  var x=document.getElementById('bigImg'+id);
  x.style.display='none';
}
function box1(url,id) {
   var x=document.getElementById('bigImg'+id);
   var h=getH();
   var scroll=getScrollXY();
   var coef=Math.round((h+scroll)*50/h);
  
   if (document.getElementById('bigImg'+id))
   {
    x.setAttribute("src", url);
    x.style.display='block';
	//alert(getH());
	x.style.top=coef+'%';
	//alert(x.style.top+getScrollXY());
	}
}  
    