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

        speed: 150,
        easing: 'linear',

        vertical: false,
        circular: false,
        visible: 5,
        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;
		var pressedPrev = false;
		var pressedNext = false;

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

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

        li.css({float: o.vertical ? "none" : "left"}); //overflow: "hidden", 
        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

		// removed click events - added mousedown and mouseup events
		// additionally added mouseout events to prevent endless loop on user click and pull
		var interval;
		
        if(o.btnPrev)
            $(o.btnPrev).mousedown(function() {
				pressedPrev = true;
				go(curr-o.scroll);
                //interval = setInterval(function() {
				//	go(curr-o.scroll);
				//}, 10);
            });
			$(o.btnPrev).mouseout(function() {
				pressedPrev = false;
                //clearInterval(interval);
            });
			$(o.btnPrev).mouseup(function() {
				pressedPrev = false;
                //clearInterval(interval);
            });
		
        if(o.btnNext)
			$(o.btnNext).mousedown(function() {
				pressedNext = true;
				go(curr+o.scroll);
                //interval = setInterval(function() {
				//	go(curr+o.scroll);
				//}, 10);
            });
			$(o.btnNext).mouseout(function() {
				pressedNext = false;
                //clearInterval(interval);
            });
			$(o.btnNext).mouseup(function() {
				pressedNext = false;
                //clearInterval(interval);
            });


        function go(to) {
		
			//console.log(1);
			
            if(!running) {


                if(o.circular) {            // If circular we are in first or last, then goto the other end
                    if(to<=o.start-v-1) {           // If first, then goto last
                        ul.css(animCss, -((itemLength-(v*2))*liSize)+"px");
                        // If "scroll" > 1, then the "to" might not be equal to the condition; it can be lesser depending on the number of elements.
                        curr = to==o.start-v-1 ? itemLength-(v*2)-1 : itemLength-(v*2)-o.scroll;
                    } else if(to>=itemLength-v+1) { // If last, then goto first
                        ul.css(animCss, -( (v) * liSize ) + "px" );
                        // If "scroll" > 1, then the "to" might not be equal to the condition; it can be greater depending on the number of elements.
                        curr = to==itemLength-v+1 ? v+1 : v+o.scroll;
                    } 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(
                    { left: -(curr*liSize) }, o.speed, o.easing,
                    function() {
						if (pressedNext) {
							running = false;
							go(curr+o.scroll);
						}
						if (pressedPrev) {
							running = false;
							go(curr-o.scroll);
						}
                        running = false;
                    }
                );
				
                // Disable buttons when the carousel reaches the last/first, and enable when not
                if(!o.circular) {
                    $(o.btnPrev + "," + o.btnNext).removeClass("disabled_left disabled_right");
                    $( (curr-o.scroll<0 && o.btnPrev) ).addClass("disabled_left");
					$( (curr+o.scroll > itemLength-v && o.btnNext) ).addClass("disabled_right");
                }

            }
            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);