// JavaScript Document
var carrousel = {

	nbSlide : 0,
	nbCurrent : 1,
	elemCurrent : null,
	elem : null,
	timer : null,
	
	init : function(elem) {
		this.nbSlide = elem.find(".slide").length;
		
		//Créer la 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");
		
		//On cré le timer
		this.timer = window.setInterval("carrousel.next()",3000);
		
	},
	
	gotoSlide : function(num) {
		if(num == this.nbCurrent){ return false; }
		
		/* Animation en fadeIn/fadeOut
		this.elemCurrent.fadeOut();
		this.elem.find("#slide"+num).fadeIn();
		*/
		
		/* Animation en Slide */
		var sens = 1;
		if (num < this.nbCurrent) {
			sens = -1;
		}
		var cssDeb = { "left" : sens * this.elem.width() };
		var cssFin = { "left" : -sens * this.elem.width() };
		this.elem.find("#slide"+num).show().css(cssDeb);
		
		this.elem.find("#slide"+num).animate({ "top" : 0, "left" : 0 }, 300);
		this.elemCurrent.animate(cssFin, 300);
					
		this.elem.find(".navigation span").removeClass("active");
		this.elem.find(".navigation span:eq("+(num-1)+")").addClass("active");
		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);
	},
	prev : function() {
		var num = this.nbCurrent - 1;
		if (num < 1){
			num = this.nbSlide;
		}
		this.gotoSlide(num);
	}

}

$(function(){
	carrousel.init($("#carrousel"));
});