jQuery.easing={easein:function(x,t,b,c,d){return c*(t/=d)*t+b},easeinout:function(x,t,b,c,d){if(t<d/2)return 2*c*t*t/(d*d)+b;var a=t-d/2;return-2*c*a*a/(d*d)+2*c*a/d+c/2+b},easeout:function(x,t,b,c,d){return-c*t*t/(d*d)+2*c*t/d+b},expoin:function(x,t,b,c,d){var a=1;if(c<0){a*=-1;c*=-1}return a*(Math.exp(Math.log(c)/d*t))+b},expoout:function(x,t,b,c,d){var a=1;if(c<0){a*=-1;c*=-1}return a*(-Math.exp(-Math.log(c)/d*(t-d))+c+1)+b},expoinout:function(x,t,b,c,d){var a=1;if(c<0){a*=-1;c*=-1}if(t<d/2)return a*(Math.exp(Math.log(c/2)/(d/2)*t))+b;return a*(-Math.exp(-2*Math.log(c/2)/d*(t-d))+c+1)+b},bouncein:function(x,t,b,c,d){return c-jQuery.easing['bounceout'](x,d-t,0,c,d)+b},bounceout:function(x,t,b,c,d){if((t/=d)<(1/2.75)){return c*(7.5625*t*t)+b}else if(t<(2/2.75)){return c*(7.5625*(t-=(1.5/2.75))*t+.75)+b}else if(t<(2.5/2.75)){return c*(7.5625*(t-=(2.25/2.75))*t+.9375)+b}else{return c*(7.5625*(t-=(2.625/2.75))*t+.984375)+b}},bounceinout:function(x,t,b,c,d){if(t<d/2)return jQuery.easing['bouncein'](x,t*2,0,c,d)*.5+b;return jQuery.easing['bounceout'](x,t*2-d,0,c,d)*.5+c*.5+b},elasin:function(x,t,b,c,d){var s=1.70158;var p=0;var a=c;if(t==0)return b;if((t/=d)==1)return b+c;if(!p)p=d*.3;if(a<Math.abs(c)){a=c;var s=p/4}else var s=p/(2*Math.PI)*Math.asin(c/a);return-(a*Math.pow(2,10*(t-=1))*Math.sin((t*d-s)*(2*Math.PI)/p))+b},elasout:function(x,t,b,c,d){var s=1.70158;var p=0;var a=c;if(t==0)return b;if((t/=d)==1)return b+c;if(!p)p=d*.3;if(a<Math.abs(c)){a=c;var s=p/4}else var s=p/(2*Math.PI)*Math.asin(c/a);return a*Math.pow(2,-10*t)*Math.sin((t*d-s)*(2*Math.PI)/p)+c+b},elasinout:function(x,t,b,c,d){var s=1.70158;var p=0;var a=c;if(t==0)return b;if((t/=d/2)==2)return b+c;if(!p)p=d*(.3*1.5);if(a<Math.abs(c)){a=c;var s=p/4}else var s=p/(2*Math.PI)*Math.asin(c/a);if(t<1)return-.5*(a*Math.pow(2,10*(t-=1))*Math.sin((t*d-s)*(2*Math.PI)/p))+b;return a*Math.pow(2,-10*(t-=1))*Math.sin((t*d-s)*(2*Math.PI)/p)*.5+c+b},backin:function(x,t,b,c,d){var s=1.70158;return c*(t/=d)*t*((s+1)*t-s)+b},backout:function(x,t,b,c,d){var s=1.70158;return c*((t=t/d-1)*t*((s+1)*t+s)+1)+b},backinout:function(x,t,b,c,d){var s=1.70158;if((t/=d/2)<1)return c/2*(t*t*(((s*=(1.525))+1)*t-s))+b;return c/2*((t-=2)*t*(((s*=(1.525))+1)*t+s)+2)+b},linear:function(x,t,b,c,d){return c*t/d+b}};

(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,
		fade: false,

		beforeStart: null,
		afterEnd: null
	}, o || {});
	
	this.jCarouselLiteOptions = o;

	return this.each(function() {

		var running = false, animCss=o.vertical?"top":"left", sizeCss=o.vertical?"height":"width";
		var div = $(this), ul = $("ul", div), tLi = $("li", ul), tl = tLi.size(), v = o.visible;

		if(o.circular && !o.fade) {
			ul.prepend(tLi.slice(tl-v-1+1).clone())
			  .append(tLi.slice(0,v).clone());
			o.start += v;
		}
		else {
//			o.circular = false;
		}

		var li = $("li", ul), itemLength = li.size(), curr = o.start;
		div.css("visibility", "visible");

		li.css({overflow: "hidden", float: o.vertical ? "none" : "left"});
		ul.css({margin: "0", padding: "0", position: "relative", "list-style-type": "none", "z-index": "1"});
		div.css({overflow: "hidden", position: "relative", "z-index": "2", left: "0px"});

		var liSize = o.vertical ? height(li) : width(li);
		var ulSize = liSize * itemLength;
		var divSize = liSize * v;

		li.css({width: li.width(), height: li.height()});
		ul.css(sizeCss, ulSize+"px").css(animCss, -(curr*liSize));

		if ( o.fade ) {
			li.css({position: 'absolute', opacity: 0.0});
			$(li[0]).css('opacity', 1.0);
			ul.css({width: li.width(), height: li.height(), left: '0', top: '0'});
		}

		div.css(sizeCss, divSize+"px");
/*Inicia fix para reiniciar contador al hacer cllick en navegador de carousel*/
		if(o.btnPrev)
			$(o.btnPrev).click(function() {
				if ( o.auto ) {
						clearInterval(o.timer);
						o.timer = setInterval(function(){go(curr+o.scroll);},o.auto+o.speed);
					}										
				return go(curr-o.scroll);
			});

		if(o.btnNext)
			$(o.btnNext).click(function() {
				if ( o.auto ) {
						clearInterval(o.timer);
						o.timer = setInterval(function(){go(curr+o.scroll);},o.auto+o.speed);
					}
				return go(curr+o.scroll);
			});

		if(o.btnGo)
			$.each(o.btnGo, function(i, val) {
				$(val).click(function() {
					if ( o.auto ) {
						clearInterval(o.timer);
						o.timer = setInterval(function(){go(curr+o.scroll);},o.auto+o.speed);
					}
					return go(o.circular&&!o.fade ? o.visible+i : i);
				});
			});
/*Termina fix para reiniciar contador al hacer cllick en navegador de carousel*/
		if(o.mouseWheel && div.mousewheel)
			div.mousewheel(function(e, d) {
				return d>0 ? go(curr-o.scroll) : go(curr+o.scroll);
			});

		if(o.auto)
			o.timer = setInterval(function(){go(curr+o.scroll);},o.auto+o.speed);

		function vis() {
			return li.slice(curr).slice(0,v);
		};

		function go(to) {
			if(!running&&curr!=to) {

				if(o.beforeStart)
					o.beforeStart.call(this, vis());

				if ( !o.fade ) {
					if(o.circular) {
						if(to<=o.start-v-1) {
							ul.css(animCss, -((itemLength-(v*2))*liSize)+"px");
							curr = to==o.start-v-1 ? itemLength-(v*2)-1 : itemLength-(v*2)-o.scroll;
						} else if(to>=itemLength-v+1) {
							ul.css(animCss, -( (v) * liSize ) + "px" );
							curr = to==itemLength-v+1 ? v+1 : v+o.scroll;
						} else curr = to;
					} else {
						if(to<0 || to>itemLength-v) { return; }
						else curr = to;
					}
				}
				else {
					if ( !o.circular && ( to < 0 || to > itemLength-v ) ) { return; }
					to = (to+itemLength)%itemLength;
				}

				running = true;
				if ( !o.fade ) {
					ul.animate(
						animCss == "left" ? { left: -(curr*liSize) } : { top: -(curr*liSize) } , o.speed, o.easing,
						function() {
							if(o.afterEnd)
								o.afterEnd.call(this, vis());
							running = false;
						}
					);
				}
				else {
					$(li[curr]).animate(
						{opacity: 0.0}, o.speed, o.easing,
						function() {
							if(o.afterEnd)
								o.afterEnd.call(this, vis());
							running = false;
						}
					);
					$(li[to]).animate(
						{opacity: 1.0}, o.speed, o.easing
					);
					curr = to;
				}
				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(el, prop) {
	return parseInt($.css(el[0], prop)) || 0;
};
function width(el) {
	return  el[0].offsetWidth + css(el, 'marginLeft') + css(el, 'marginRight');
};
function height(el) {
	return el[0].offsetHeight + css(el, 'marginTop') + css(el, 'marginBottom');
};

})(jQuery);