(function($){
	
	$.fn.rtabs = function(options){
		
		//默认值
		var defaultval = {
			btnclass:'.j-tab-nav',	/*按钮的父级class*/
			conclass:'.j-tab-con',	/*内容的父级class*/
			bind:'hover',	/*事件参数 click,hover*/
			animation:'0',	/*动画方向 left,up,fadein,0 为无动画*/
			speed:300, 	/*动画运动速度*/
			delay:200,	/*tab延迟速度*/
			auto:false,	/*是否开启自动运行 true,false*/
			autospeed:3000	/*自动运行速度*/
		};
		
		//全局变量
		var obj = $.extend(defaultval, options),
			evt = obj.bind,
			btn = $(this).find(obj.btnclass),
			con = $(this).find(obj.conclass),
			anim = obj.animation,
			conwidth = con.width(),
			conheight = con.height(),
			len = con.children().length,
			sw = len * conwidth,
			sh = len * conheight,
			i = 0,
			len,t,timer;

		return this.each(function(){
			
			//判断动画方向
			function judgeanim(){
				var w = i * conwidth,
					h = i * conheight;
				btn.children().removeclass('current').eq(i).addclass('current');
				switch(anim){
					case '0':
					con.children().hide().eq(i).show();
					break;
					case 'left':
					con.css({position:'absolute',width:sw}).children().css({float:'left',display:'block'}).end().stop().animate({left:-w},obj.speed);
					break;
					case 'up':
					con.css({position:'absolute',height:sh}).children().css({display:'block'}).end().stop().animate({top:-h},obj.speed);
					break;
					case 'fadein':
					con.children().hide().eq(i).fadein();
					break;
				}
			}
			
			//判断事件类型
			if(evt == "hover"){
				btn.children().hover(function(){
					var j = $(this).index();
					function s(){
						i = j;
						judgeanim();
					}
					timer=settimeout(s,obj.delay);
				}, function(){
					cleartimeout(timer);
				})
			}else{
				btn.children().bind(evt,function(){
					i = $(this).index();
					judgeanim();
				})
			}
			
			//自动运行
			function startrun(){
				t = setinterval(function(){
					i++;
					if(i>=len){
						switch(anim){
							case 'left':
							con.stop().css({left:conwidth});
							break;
							case 'up':
							con.stop().css({top:conheight});
						}	
						i=0;
					}
					judgeanim();
				},obj.autospeed)
			}
			
			//如果自动运行开启，调用自动运行函数
			if(obj.auto){
				$(this).hover(function(){
					clearinterval(t);
				},function(){
					startrun();
				})
				startrun();
			}
			
		})
		
	}
	
})(jquery);