var carrousel = {
	nbSlide:0,
	nbCurrent:1,
	elemCurrent:null,
	elem:null,
	timer:null,
	
	init:function(elem){
		this.nbSlide=elem.find(".slide").length;
		
		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());})

		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");
		this.elem.find(".navigation").css("opacity",0.6);
		
		carrousel.play();
		elem.mouseover(carrousel.stop);
		elem.mouseout(carrousel.play);
	},
		
	gotoSlide:function(num){
		if(num==this.nbCurrent){return false;}
		this.elemCurrent.find(".visu").fadeOut();
		this.elem.find("#slide"+num).show();
		this.elem.find("#slide"+num+" .visu").hide().fadeIn();
		
		var titleHeight=this.elemCurrent.find(".title").height();
		
		this.elemCurrent.find(".title").animate({"bottom":-titleHeight},500);
		this.elem.find("#slide"+num+" .title").css("bottom",-titleHeight).animate({"bottom":0},500);
		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);
	},
		
		
	stop:function(){
		window.clearInterval(carrousel.timer);
	},
		
	play:function(){
		window.clearInterval(carrousel.timer);
		carrousel.timer=window.setInterval("carrousel.next()",5000);
	}
}

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