(function($){
	$.fn.diaporama = function(options) {

		var defaults = {
			delay: 8,
			animationSpeed: "slow",
			controls:true
		};
		
		this.each(function(){
		
			var domElt = this;
			var $this = $(this);
			var obj = $this.find("ul.pictures");
			var options = $.extend(defaults, options);
			var ctrls;
			var compteur = $("<span class='compteur'></span>");
			
			$this.addClass('diaporama-actif');
			compteur.text("1/" + $(obj).find("li").length);
			
			//calcul de la hauteur max
			var maxH = 0;
			var maxImgH = 0;
			$(obj).find("li").each(function(){
				var h = $(this).outerHeight();
				var imgH = $(this).find("img").outerHeight();
				if(h > maxH) maxH = h;
				if(imgH > maxImgH) maxImgH = imgH;
			});
			$(obj).height(maxH+"px");
			
			if($(obj).find("li").length > 1){
				domElt.inter = setInterval(function(){nextElt(options)}, (options.delay*1000));
				var sens = "right";
				var pause = false;
				
				$(obj).find("li").hide();
				$(obj).find("li:first-child").addClass("active").fadeIn(options.animationSpeed);
				
				// Controls
				
				if(options.controls)
				{
					ctrls = $('<div class="diaporama_controls"></div>');
					ctrls.css('top', maxImgH+'px');
					ctrls.append(compteur);
					ctrls.append("<div class='btns'><a class='prev'>Prec.</a> <a class='pause'>Pause</a> <a class='next'>Suiv.</a></div>");
					$(obj).after(ctrls);
					
					$(obj).siblings().find(".prev").click(function(){
						clearInterval(domElt.inter);
						prevElt(options);
						if(!pause)
							domElt.inter = setInterval(function(){prevElt(options)}, (options.delay*1000));
						sens = "left";
					});
					
					$(obj).siblings().find(".next").click(function(){
						clearInterval(domElt.inter);
						nextElt(options);
						if(!pause)
							domElt.inter = setInterval(function(){nextElt(options)}, (options.delay*1000));
						sens = "right";
					});
													
					$(obj).siblings().find(".pause").toggle(
						function(){
							$(this).removeClass("pause").addClass("play");
							clearInterval(domElt.inter);
							pause = true;
						},
						function(){
							$(this).removeClass("play").addClass("pause");
							domElt.inter = setInterval(function(){ (sens == "right")?nextElt(options):prevElt(options)}, (options.delay*1000));
							pause = false;
						}
					);
				}
				
				// Affiche l'�l�ment suivant
				
				function nextElt(options)
				{
					$(obj).find("li.active").fadeOut(options.animationSpeed);
					
					if(!$(obj).find("li.active").is(":last-child"))
					{
						$(obj).find("li.active").next().addClass("active").prev().removeClass("active");
						$(obj).find("li.active").fadeIn(options.animationSpeed);
						
					}
					else
					{
						$(obj).find("li:first-child").addClass("active").fadeIn(options.animationSpeed);
						$(obj).find("li:last-child").removeClass("active");
					}
					
					var items = $(obj).find('li');
					var i = 0;
					while ( items[i] &&! items[i].className.match(/\s*active\s*/)){
						i++;
					}
					
					compteur.text(( i + 1 ) + "/" + $(obj).find("li").length);
					
				}
				
				// Affiche l'�l�ment pr�c�dent
				
				function prevElt(options)
				{
					$(obj).find("li.active").fadeOut(options.animationSpeed);
					
					if(!$(obj).find("li.active").is(":first-child"))
					{
						$(obj).find("li.active").prev().addClass("active").next().removeClass("active");
						$(obj).find("li.active").fadeIn(options.animationSpeed);
						
					}
					else
					{
						$(obj).find("li:last-child").addClass("active").fadeIn(options.animationSpeed);
						$(obj).find("li:first-child").removeClass("active");
					}
					
					var items = $(obj).find('li');
					var i = 0;
					while ( items[i] &&! items[i].className.match(/\s*active\s*/)){
						i++;
					}
					
					compteur.text(( i + 1 ) + "/" + $(obj).find("li").length);
				}
			}
		});
		
		return this;
	};
	
	$.fn.stopDiaporama = function(){
		this.each(function(){
			if(this.inter) clearInterval(this.inter);
		});
	};
	
})(jQuery);