//Carrousel.js by Aldrien

var carrousel = {
	
	nbSlide : 0,
	nbCurrent : 1,
	elemCurrent : null,
	elem : null,
	timer : null,
	
	init : function(elem){
		this.nbSlide = elem.find(".slide").length;
		// Pagination
		elem.append('<div class="navigation"></div>');
		for(var i = 1; i <= this.nbSlide; i++){
			elem.find(".navigation").append("<span>"+i+"</span>");
		}
		elem.find(".navigation span").click(function(){carrousel.gotoSlide($(this).text()); })
		//Initialisation du carrousel
		this.elem = elem;
		elem.find(".slide").hide();
		elem.find(".slide:first").show();
		this.elemCurrent = elem.find(".slide:first");
		this.elem.find(".navigation span:first").addClass("active");
		
		//Timer
		carrousel.play();
		
		//Detection passage -> stop
		elem.mouseover(carrousel.stop);
		elem.mouseout(carrousel.play);
	},
	
	gotoSlide : function(num){
		if(num == this.nbCurrent){return false;}
		this.elemCurrent.fadeOut();
		this.elem.find("#slide"+num).fadeIn();
		this.elem.find(".navigation span").removeClass("active");
		this.elem.find(".navigation span:eq("+(num-1)+")").addClass("active"); //num-1 car le decompte des élement commence à 0 
		this.nbCurrent = num;
		this.elemCurrent = this.elem.find("#slide"+num);
	},
	
	next : function(){
		var num = this.nbCurrent + 1;
		if(num > this.nbSlide){
			num = 1;
		}
		this.gotoSlide(num);
	},
	
	stop : function(){
		window.clearInterval(carrousel.timer);
	},
	
	play : function(){
		window.clearInterval(carrousel.timer);
		carrousel.timer = window.setInterval("carrousel.next()", 4000);
	}

}

$(function(){ //Attend que jquery soit chargé
	carrousel.init($("#carrousel"));
});