(function($){
	$.fn.jCarouselLite=function(o){
		o=$.extend({
			btnPrev:null,
			btnNext:null,
			btnGo:null,
			mouseWheel:false,
			auto:null,
			speed:200,
			easing:null,
			vertical:false,
			circular:true,
			visible:3,
			start:0,
			scroll:1,
			beforeStart:null,
			afterEnd:null
		},o||{});
		return this.each(function(){
			var b=false,animCss=o.vertical?"top":"left",sizeCss=o.vertical?"height":"width";
			var c=$(this),ul=$("ul",c),tLi=$("li",ul),tl=tLi.size(),v=o.visible;
			if(o.circular){
				ul.prepend(tLi.slice(tl-v-1+1).clone()).append(tLi.slice(0,v).clone());
				o.start+=v
				}
				var f=$("li",ul),itemLength=f.size(),curr=o.start;
			c.css("visibility","visible");
			f.css({
				overflow:"hidden",
				float:o.vertical?"none":"left"
				});
			ul.css({
				margin:"0",
				padding:"0",
				position:"relative",
				"list-style-type":"none",
				"z-index":"1"
			});
			c.css({
				overflow:"hidden",
				position:"relative",
				"z-index":"2",
				left:"0px"
			});
			var g=o.vertical?height(f):width(f);
			var h=g*itemLength;
			var j=g*v;
			f.css({
				width:f.width(),
				height:f.height()
				});
			ul.css(sizeCss,h+"px").css(animCss,-(curr*g));
			c.css(sizeCss,j+"px");
			if(o.btnPrev)$(o.btnPrev).click(function(){
				return go(curr-o.scroll)
				});
			if(o.btnNext)$(o.btnNext).click(function(){
				return go(curr+o.scroll)
				});
			if(o.btnGo)$.each(o.btnGo,function(i,a){
				$(a).click(function(){
					return go(o.circular?o.visible+i:i)
					})
				});
			if(o.mouseWheel&&c.mousewheel)c.mousewheel(function(e,d){
				return d>0?go(curr-o.scroll):go(curr+o.scroll)
				});
			if(o.auto)setInterval(function(){
				go(curr+o.scroll)
				},o.auto+o.speed);
			function vis(){
				return f.slice(curr).slice(0,v)
				};

			function go(a){
				if(!b){
					if(o.beforeStart)o.beforeStart.call(this,vis());
					if(o.circular){
						if(a<=o.start-v-1){
							ul.css(animCss,-((itemLength-(v*2))*g)+"px");
							curr=a==o.start-v-1?itemLength-(v*2)-1:itemLength-(v*2)-o.scroll
							}else if(a>=itemLength-v+1){
							ul.css(animCss,-((v)*g)+"px");
							curr=a==itemLength-v+1?v+1:v+o.scroll
							}else curr=a
							}else{
						if(a<0||a>itemLength-v)return;else curr=a
							}
							b=true;
					ul.animate(animCss=="left"?{
						left:-(curr*g)
						}:{
						top:-(curr*g)
						},o.speed,o.easing,function(){
						if(o.afterEnd)o.afterEnd.call(this,vis());
						b=false
						});
					if(!o.circular){
						$(o.btnPrev+","+o.btnNext).removeClass("disabled");
						$((curr-o.scroll<0&&o.btnPrev)||(curr+o.scroll>itemLength-v&&o.btnNext)||[]).addClass("disabled")
						}
					}
				return false
			}
		})
};

function css(a,b){
	return parseInt($.css(a[0],b))||0
	};

function width(a){
	return a[0].offsetWidth+css(a,'marginLeft')+css(a,'marginRight')
	};
	
function height(a){
	return a[0].offsetHeight+css(a,'marginTop')+css(a,'marginBottom')
	}
})(jQuery);