/ Creation des variables /
     if(!window.JSFX)
     JSFX=new Object();
     JSFX.ImageZoomRunning = false;
    
     JSFX.zoomOn = function(img, zoomStep, maxZoom)
     {
     if(img)
     {
     if(!zoomStep)
     {
     if(img.mode == "EXPAND")
     zoomStep = img.height/10;
     else
     zoomStep = img.width/10;
     }
    
     if(!maxZoom)
     {
     if(img.mode == "EXPAND")
     maxZoom = img.height/2;
     else
     maxZoom = img.width/2;
     }
    
    
     if(img.state == null)
     {
     img.state = "OFF";
     img.index = 0;
     img.orgWidth = img.width;
     img.orgHeight = img.height;
     img.zoomStep = zoomStep;
     img.maxZoom = maxZoom;
     }
    
     if(img.state == "OFF")
     {
     img.state = "ZOOM_IN";
     start_zooming();
     }
     else if( img.state == "ZOOM_IN_OUT"
     || img.state == "ZOOM_OUT")
     {
     img.state = "ZOOM_IN";
     }
     }
     }
     JSFX.zoomIn = function(img, zoomStep, maxZoom)
     {
     img.mode = "ZOOM";
     JSFX.zoomOn(img, zoomStep, maxZoom);
     }
     JSFX.stretchIn = function(img, zoomStep, maxZoom)
     {
     img.mode = "STRETCH";
     JSFX.zoomOn(img, zoomStep, maxZoom);
     }
     JSFX.expandIn = function(img, zoomStep, maxZoom)
     {
     img.mode = "EXPAND";
     JSFX.zoomOn(img, zoomStep, maxZoom);
     }
    
     JSFX.zoomOut = function(img)
     {
     if(img)
     {
     if(img.state=="ON")
     {
     img.state="ZOOM_OUT";
     start_zooming();
     }
     else if(img.state == "ZOOM_IN")
     {
     img.state="ZOOM_IN_OUT";
     }
     }
     }
    
     function start_zooming()
     {
     if(!JSFX.ImageZoomRunning)
     ImageZoomAnimation();
     }
    
     JSFX.setZoom = function(img)
     {
     if(img.mode == "STRETCH")
     {
     img.width = img.orgWidth + img.index;
     img.height = img.orgHeight;
     }
     else if(img.mode == "EXPAND")
     {
     img.width = img.orgWidth;
     img.height = img.orgHeight + img.index;
     }
     else
     {
     img.width = img.orgWidth + img.index;
     img.height = img.orgHeight + img.index;
     }
     }
    
     function ImageZoomAnimation()
     {
     JSFX.ImageZoomRunning = false;
     for(i=0 ; i<document.images.length ; i++)
     {
     var img = document.images[i];
     if(img.state)
     {
     if(img.state == "ZOOM_IN")
     {
     img.index+=img.zoomStep;
     if(img.index > img.maxZoom)
     img.index = img.maxZoom;
    
     JSFX.setZoom(img);
    
     if(img.index == img.maxZoom)
     img.state="ON";
     else
     JSFX.ImageZoomRunning = true;
     }
     else if(img.state == "ZOOM_IN_OUT")
     {
     img.index+=img.zoomStep;
     if(img.index > img.maxZoom)
     img.index = img.maxZoom;
    
     JSFX.setZoom(img);
    
     if(img.index == img.maxZoom)
     img.state="ZOOM_OUT";
     JSFX.ImageZoomRunning = true;
     }
     else if(img.state == "ZOOM_OUT")
     {
     img.index-=img.zoomStep;
     if(img.index < 0)
     img.index = 0;
    
     JSFX.setZoom(img);
    
     if(img.index == 0)
     img.state="OFF";
     else
     JSFX.ImageZoomRunning = true;
     }
     }
     }
     if(JSFX.ImageZoomRunning)
     setTimeout("ImageZoomAnimation()", 40);
     }