/**
 * jCarouselLite 1.0.8 - jQuery plugin to navigate images/any content in a carousel style widget.
 * http://gmarwaha.com/jquery/jcarousellite/
 * Copyright (c) 2007 Ganeshji Marwaha (gmarwaha.com)
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 */
(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",
				sizeAlt=o.vertical?"width":"height",
				c=$(this),
				ul=$("ul",c),
				tLi=$("li",ul),
				tl=tLi.size(),
				v=o.visible,timer;

            if(o.circular){
                ul.prepend(tLi.slice(tl-v-1+1).clone()).append(tLi.slice(0,v).clone());
                o.start+=v
            }
            var f=$("li",ul),itemLength=f.size(),curr=o.start;
            c.css("visibility","visible");
            f.css({
                overflow:"hidden",
				float:o.vertical?"none":"left"
            });
            ul.css({
                margin:"0",
				padding:"0",
				position:"relative",
				"list-style-type":"none","z-index":"1"
            });
            c.css({
                overflow:"hidden",position:"relative","z-index":"2",left:"0px"
            });
            var mW=0,mH=0;
            f.each(function(){
                var s=$(this);
                mW=Math.max(mW,s.width());
                mH=Math.max(mH,s.height());
            });
            var g=o.vertical?mH:mW,j=g*v,h=g*itemLength;
            f.css({
                width:mW,height:mH
            });
            ul.css(sizeCss,h+"px").css(animCss,-(curr*g));
            c.css(sizeCss,j+"px");
            c.css(sizeAlt,(o.vertical?mW:mH)+'px');
            if(o.btnPrev)c.parent().find(o.btnPrev).click(function(){
                return go(curr-o.scroll)
            });
            if(o.btnNext)c.parent().find(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)
            });
            c.bind('changeAuto',function(e,a){
                if(timer)clearInterval(timer);
                if(a){
                    o.auto=a;
                    timer=setInterval(function(){
                        go(curr+o.scroll)
                    }
                    ,o.auto+o.speed)
                }
            });
            if(o.auto)c.trigger('changeAuto',[o.auto]);
            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){
                        c.parent().find(o.btnPrev+','+o.btnNext).removeClass("disabled");
                        $((curr-o.scroll<0&&o.btnPrev)||(curr+o.scroll>itemLength-v&&o.btnNext)||[],c.parent()).addClass("disabled")
                    }
                }
                return false
            };
            c.bind('slideGo',function(e,d){
                go(curr+d)
            });
            c.bind('slideGoTo',function(e,s){
                go(s.index())
            });
            c.bind('slideGoToInstant',function(e,i){
				var sp = o.speed;
				o.speed = 1;
                go(i);
				o.speed = sp;
            });
        })
    }

    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);