(function($) { // Compliant with jquery.noConflict()
$.fn.jCarouselLite = function(o) {
 o = $.extend({
 btnPrev: null,
 btnNext: null,
 btnGo: null,
 mouseWheel: false,
 auto: null,
 hoverPause: false,

 speed: 200,
 easing: null,

 vertical: false,
 circular: true,
 visible: 3,
 start: 0,
 scroll: 1,

 beforeStart: null,
 afterEnd: null
 }, o || {});

 return this.each(function() { // Returns the element collection. Chainable.

 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) {
 ul.prepend(tLi.slice(tl-v+1).clone())
 .append(tLi.slice(0,o.scroll).clone());
 o.start += v-1;
 }

 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); // Full li size(incl margin)-Used for animation
 var ulSize = liSize * itemLength; // size of full ul(total length, not just for the visible items)
 var divSize = liSize * v; // size of entire div(total length for just the visible items)

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

 div.css(sizeCss, divSize+"px"); // Width of the DIV. length of visible images

 if(o.btnPrev) {
 $(o.btnPrev).click(function() {
 return go(curr-o.scroll);
 });
 if(o.hoverPause) {
 $(o.btnPrev).hover(function(){stopAuto();}, function(){startAuto();});
 }
 }


 if(o.btnNext) {
 $(o.btnNext).click(function() {
 return go(curr+o.scroll);
 });
 if(o.hoverPause) {
 $(o.btnNext).hover(function(){stopAuto();}, function(){startAuto();});
 }
 }

 if(o.btnGo)
 $.each(o.btnGo, function(i, val) {
 $(val).click(function() {
 return go(o.circular ? o.visible+i : i);
 });
 });

 if(o.mouseWheel && div.mousewheel)
 div.mousewheel(function(e, d) {
 return d>0 ? go(curr-o.scroll) : go(curr+o.scroll);
 });

 var autoInterval;

 function startAuto() {
 stopAuto();
 autoInterval = setInterval(function() {
 go(curr+o.scroll);
 }, o.auto+o.speed);
 };

 function stopAuto() {
 clearInterval(autoInterval);
 };

 if(o.auto) {
 if(o.hoverPause) {
 div.hover(function(){stopAuto();}, function(){startAuto();});
 }
 startAuto();
 };

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

 function go(to) {
 if(!running) {
 if(o.beforeStart)
 o.beforeStart.call(this, vis());

 if(o.circular) { // If circular we are in first or last, then goto the other end
 if(to<0) { // If before range, then go around
 ul.css(animCss, -( (curr + tl) * liSize)+"px");
 curr = to + tl;
 } else if(to>itemLength-v) { // If beyond range, then come around
 ul.css(animCss, -( (curr - tl) * liSize ) + "px" );
 curr = to - tl;
 } else curr = to;
 } else { // If non-circular and to points to first or last, we just return.
 if(to<0 || to>itemLength-v) return;
 else curr = to;
 } // If neither overrides it, the curr will still be "to" and we can proceed.

 running = true;

 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;
 }
 );
 // Disable buttons when the carousel reaches the last/first, and enable when not
 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);