/*****************************************/
/*		   DETECTION MOLLETTE			 */
/*****************************************/

Object.extend(Event, {

        wheel:function (event){

                var delta = 0;

                if (!event) event = window.event;

                if (event.wheelDelta) {

                        delta = event.wheelDelta/120;

                        if (window.opera) delta = -delta;

                } else if (event.detail) { delta = -event.detail/3;     }
				
				//$('testWheel').innerHTML = delta;
				
               // return Math.round(delta); //Safari Round
				return delta;
        }

});

/*

* end of extension

*/

function handleSite(e) {
		
		
		if (Event.wheel(e) >= 0) {
			if (currentPhoto!=nbImages) slidePhoto('right');	
		//test = "right";
		} else {
			if (currentPhoto!=1) slidePhoto('left');
		//test = "left";
		}
		
}

 

Event.observe(document, "mousewheel", handleSite, false);

Event.observe(document, "DOMMouseScroll", handleSite, false); // Firefox