(function($){
    $.fn.featureCarousel=function(options){
        options=$.extend({},$.fn.featureCarousel.defaults,options||{});
        return $(this).each(function(){
            var pluginData={
                currentCenterNum:options.startingFeature,
                containerWidth:0,
                containerHeight:0,
                largeFeatureWidth:0,
                largeFeatureHeight:0,
                smallFeatureWidth:0,
                smallFeatureHeight:0,
                totalFeatureCount:$(this).children("div").length,
                currentlyMoving:false,
                featuresContainer:$(this),
                featuresArray:[],
                containerIDTag:"#"+$(this).attr("id"),
                timeoutVar:null,
                rotationsRemaining:0,
                itemsToAnimate:0,
                borderWidth:0
            };

            preload(function(){
                setupFeatureDimensions();
                setupCarousel();
                setupFeaturePositions();
                setupTrackers();
                initiateMove(true,1);
            });
            function preload(callback){
                if(options.preload==true){
                    var $imageElements=pluginData.featuresContainer.find("img");
                    var loadedImages=0;
                    var totalImages=$imageElements.length;
                    $imageElements.each(function(){
                        $(this).load(function(){
                            loadedImages++;
                            if(loadedImages==totalImages){
                                callback();
                            }
                        });
                    if(this.complete||$.browser.msie){
                        $(this).trigger('load');
                    }
                    });
        }else{
            callback();
        }
        }
    function getContainer(featureNum){
        return pluginData.featuresArray[featureNum-1];
    }
    function getBySetPos(position){
        $.each(pluginData.featuresArray,function(){
            if($(this).data().setPosition==position)
                return $(this);
        });
    }
    function getPreviousNum(num){
        if((num-1)==0){
            return pluginData.totalFeatureCount;
        }else{
            return num-1;
        }
    }
function getNextNum(num){
    if((num+1)>pluginData.totalFeatureCount){
        return 1;
    }else{
        return num+1;
    }
}
function setupFeatureDimensions(){
    pluginData.containerWidth=pluginData.featuresContainer.width();
    pluginData.containerHeight=pluginData.featuresContainer.height();
    var $firstFeatureImage=$(pluginData.containerIDTag).find(".carousel-image:first");
    if(options.largeFeatureWidth>1)
        pluginData.largeFeatureWidth=options.largeFeatureWidth;
    else if(options.largeFeatureWidth>0&&options.largeFeatureWidth<1)
        pluginData.largeFeatureWidth=$firstFeatureImage.width()*options.largeFeatureWidth;else
        pluginData.largeFeatureWidth=$firstFeatureImage.outerWidth();
    if(options.largeFeatureHeight>1)
        pluginData.largeFeatureHeight=options.largeFeatureHeight;
    else if(options.largeFeatureHeight>0&&options.largeFeatureHeight<1)
        pluginData.largeFeatureHeight=$firstFeatureImage.height()*options.largeFeatureHeight;else
        pluginData.largeFeatureHeight=$firstFeatureImage.outerHeight();
    if(options.smallFeatureWidth>1)
        pluginData.smallFeatureWidth=options.smallFeatureWidth;
    else if(options.smallFeatureWidth>0&&options.smallFeatureWidth<1)
        pluginData.smallFeatureWidth=$firstFeatureImage.width()*options.smallFeatureWidth;else
        pluginData.smallFeatureWidth=$firstFeatureImage.outerWidth()/2;
    if(options.smallFeatureHeight>1)
        pluginData.smallFeatureHeight=options.smallFeatureHeight;
    else if(options.smallFeatureHeight>0&&options.smallFeatureHeight<1)
        pluginData.smallFeatureHeight=$firstFeatureImage.height()*options.smallFeatureHeight;else
        pluginData.smallFeatureHeight=$firstFeatureImage.outerHeight()/2;
}
function setupCarousel(){
    if(options.displayCutoff>0&&options.displayCutoff<pluginData.totalFeatureCount){
        pluginData.totalFeatureCount=options.displayCutoff;
    }
    pluginData.featuresContainer.find(".carousel-feature").each(function(index){
        if(index<pluginData.totalFeatureCount){
            pluginData.featuresArray[index]=$(this);
        }
    });
if(pluginData.featuresContainer.find(".carousel-feature").first().css("borderLeftWidth")!="medium"){
    pluginData.borderWidth=parseInt(pluginData.featuresContainer.find(".carousel-feature").first().css("borderLeftWidth"))*2;
}
pluginData.featuresContainer.find(".carousel-feature").each(function(){
    $(this).css({
        'left':(pluginData.containerWidth/2)-(pluginData.smallFeatureWidth/2)-(pluginData.borderWidth/2),
        'width':pluginData.smallFeatureWidth,
        'height':pluginData.smallFeatureHeight,
        'top':options.smallFeatureOffset+options.topPadding,
        'opacity':0
    });
}).find(".carousel-image").css({
    'width':pluginData.smallFeatureWidth
    });
if(options.captionBelow){
    pluginData.featuresContainer.find('.carousel-caption').css('position','relative');
}
if(pluginData.totalFeatureCount<4){
    pluginData.itemsToAnimate=pluginData.totalFeatureCount;
}else{
    pluginData.itemsToAnimate=4;
}
pluginData.featuresContainer.find(".carousel-caption").hide();
}
function setupFeaturePositions(){
    $.each(pluginData.featuresArray,function(i){
        $(this).data('setPosition',i+1);
    });
    var oneBeforeStarting=getPreviousNum(options.startingFeature);
    pluginData.currentCenterNum=oneBeforeStarting;
    var $centerFeature=getContainer(oneBeforeStarting);
    $centerFeature.data('position',1);
    var $prevFeatures=$centerFeature.prevAll();
    $prevFeatures.each(function(i){
        $(this).data('position',(pluginData.totalFeatureCount-i));
    });
    var $nextFeatures=$centerFeature.nextAll();
    $nextFeatures.each(function(i){
        if($(this).data('setPosition')!=undefined){
            $(this).data('position',(i+2));
        }
    });
if(options.counterStyle=='caption'){
    $.each(pluginData.featuresArray,function(){
        var pos=getPreviousNum($(this).data('position'));
        var $numberTag=$("<span></span>");
        $numberTag.addClass("numberTag");
        $numberTag.html("("+pos+" of "+pluginData.totalFeatureCount+") ");
        $(this).find('.carousel-caption p').prepend($numberTag);
    });
}
}
function setupTrackers()
{
    if(options.trackerIndividual){
        var $list=$("<ul></ul>");
        $list.addClass("tracker-individual-container");
        for(var i=0;i<pluginData.totalFeatureCount;i++){
            var counter=i+1;
            var $trackerBlip=$("<div>"+counter+"</div>");
            $trackerBlip.addClass("tracker-individual-blip");
            $trackerBlip.css("cursor","pointer");
            $trackerBlip.attr("id","tracker-"+(i+1));
            var $listEntry=$("<li></li>");
            $listEntry.append($trackerBlip);
            $listEntry.css("float","left");
            $listEntry.css("list-style-type","none");
            $list.append($listEntry);
        }
        $(pluginData.containerIDTag).append($list);
        $list.hide().show();
    }
    if(options.trackerSummation){
        var $tracker=$('<div></div>');
        $tracker.addClass('tracker-summation-container');
        var $current=$('<span></span>').addClass('tracker-summation-current').text(options.startingFeature);
        var $total=$('<span></span>').addClass('tracker-summation-total').text(pluginData.totalFeatureCount);
        var $middle=$('<span></span>').addClass('tracker-summation-middle').text(' of ');
        $tracker.append($current).append($middle).append($total);
        $(pluginData.containerIDTag).append($tracker);
    }
}
function updateTracker(oldCenter,newCenter){
    for (var i=1;i<=pluginData.totalFeatureCount;i++)
    {
        if(i == newCenter)
        {
            $('#imageText'+newCenter).show();
        }
        else
        {
            $('#imageText'+i).hide();
        }
    }
    
    

    if(options.trackerIndividual){
        var $trackerContainer=pluginData.featuresContainer.find(".tracker-individual-container");
        var $oldCenter=$trackerContainer.find("#tracker-"+oldCenter);
        var $newCenter=$trackerContainer.find("#tracker-"+newCenter);
        $oldCenter.removeClass("tracker-individual-blip-selected");
        $newCenter.addClass("tracker-individual-blip-selected");
    }
    if(options.trackerSummation){
        var $trackerContainer=pluginData.featuresContainer.find('.tracker-summation-container');
        $trackerContainer.find('.tracker-summation-current').text(newCenter);
    }
}
function setTimer(stop){
    clearTimeout(pluginData.timeoutVar);
    if(!stop&&options.autoPlay!=0){
        var autoTime=(Math.abs(options.autoPlay)<options.carouselSpeed)?options.carouselSpeed:Math.abs(options.autoPlay);
        pluginData.timeoutVar=setTimeout(function(){
            (options.autoPlay>0)?initiateMove(true,1):initiateMove(false,1);
        },autoTime);
    }
}
function rotatePositions(direction){
    $.each(pluginData.featuresArray,function(){
        var newPos;
        if(direction==false){
            newPos=getNextNum($(this).data().position);
        }else{
            newPos=getPreviousNum($(this).data().position);
        }
        $(this).data('position',newPos);
    });
}
function animateFeature($feature,direction)
{
    var new_width,new_height,new_top,new_left,new_zindex,new_padding,new_fade;
    var oldPosition=$feature.data('position');
    var newPosition;
    if(direction==true)
        newPosition=getPreviousNum(oldPosition);else
        newPosition=getNextNum(oldPosition);
    if(oldPosition==1){
        options.leavingCenter($feature);
    }
    if(newPosition==1){
        new_width=pluginData.largeFeatureWidth;
        new_height=pluginData.largeFeatureHeight;
        new_top=options.topPadding;
        new_zindex=$feature.css("z-index");
        new_left=(pluginData.containerWidth/2)-(pluginData.largeFeatureWidth/2)-(pluginData.borderWidth/2);
        new_fade=1.0;
    }else{
        new_width=pluginData.smallFeatureWidth;
        new_height=pluginData.smallFeatureHeight;
        new_top=options.smallFeatureOffset+options.topPadding;
        new_zindex=1;
        new_fade=0.4;
        if(newPosition==pluginData.totalFeatureCount){
            new_left=options.sidePadding;
        }else if(newPosition==2){
            new_left=pluginData.containerWidth-pluginData.smallFeatureWidth-options.sidePadding-pluginData.borderWidth;
        }else{
            new_left=(pluginData.containerWidth/2)-(pluginData.smallFeatureWidth/2)-(pluginData.borderWidth/2);
            new_fade=0;
        }
    }
if(oldPosition==1){
    $feature.find(".carousel-caption").hide();
}
$feature.animate({
    width:new_width,
    height:new_height,
    top:new_top,
    left:new_left,
    opacity:new_fade
},options.carouselSpeed,options.animationEasing,function(){
    if(newPosition==1){
        if(options.captionBelow)
            $feature.css('height','auto');
        $feature.find(".carousel-caption").fadeTo("fast",0.85);
        options.movedToCenter($feature);
    }
    pluginData.rotationsRemaining=pluginData.rotationsRemaining-1;
    $feature.css("z-index",new_zindex);
    if(options.trackerIndividual||options.trackerSummation){
        if(newPosition==1){
            var newCenterItemNum=pluginData.featuresContainer.find(".carousel-feature").index($feature)+1;
            var oldCenterItemNum;
            if(direction==false)
                oldCenterItemNum=getNextNum(newCenterItemNum);else
                oldCenterItemNum=getPreviousNum(newCenterItemNum);
            updateTracker(oldCenterItemNum,newCenterItemNum);
        }
    }
var divide=pluginData.rotationsRemaining/pluginData.itemsToAnimate;
if(divide%1==0){
    pluginData.currentlyMoving=false;
    rotatePositions(direction);
    if(pluginData.rotationsRemaining>0)
        move(direction);
}
setTimer(false);
}).find('.carousel-image').animate({
    width:new_width,
    height:new_height
},options.carouselSpeed,options.animationEasing).end();
}
function move(direction)
{
    pluginData.currentlyMoving=true;
    var $newCenter,$newLeft,$newRight,$newHidden;
    if(direction==true){
        $newCenter=getContainer(getNextNum(pluginData.currentCenterNum));
        $newLeft=getContainer(pluginData.currentCenterNum);
        $newRight=getContainer(getNextNum(getNextNum(pluginData.currentCenterNum)));
        $newHidden=getContainer(getPreviousNum(pluginData.currentCenterNum));
        pluginData.currentCenterNum=getNextNum(pluginData.currentCenterNum);
    }else{
        $newCenter=getContainer(getPreviousNum(pluginData.currentCenterNum));
        $newLeft=getContainer(getPreviousNum(getPreviousNum(pluginData.currentCenterNum)));
        $newRight=getContainer(pluginData.currentCenterNum);
        $newHidden=getContainer(getNextNum(pluginData.currentCenterNum));
        pluginData.currentCenterNum=getPreviousNum(pluginData.currentCenterNum);
    }
    if(direction){
        $newLeft.css("z-index",3);
    }else{
        $newRight.css("z-index",3);
    }
    $newCenter.css("z-index",4);
    animateFeature($newLeft,direction);
    animateFeature($newCenter,direction);
    animateFeature($newRight,direction);
    if(pluginData.totalFeatureCount>3){
        animateFeature($newHidden,direction);
    }
}
function initiateMove(direction,rotations){
    if(pluginData.currentlyMoving==false){
        var queue=rotations*pluginData.itemsToAnimate;
        pluginData.rotationsRemaining=queue;
        move(direction);
    }
}
function findShortestDistance(from,to){
    var goingToLeft=1,goingToRight=1,tracker;
    tracker=from;
    while((tracker=getPreviousNum(tracker))!=to){
        goingToLeft++;
    }
    tracker=from;
    while((tracker=getNextNum(tracker))!=to){
        goingToRight++;
    }
    return(goingToLeft<goingToRight)?goingToLeft*-1:goingToRight;
}
$(options.leftButtonTag).live('click',function(){
    initiateMove(false,1);
});
$(options.rightButtonTag).live('click',function(){
    initiateMove(true,1);
});
pluginData.featuresContainer.find(".carousel-feature").click(function(){
    var position=$(this).data('position');
    if(position==2){
        initiateMove(true,1);
    }else if(position==pluginData.totalFeatureCount){
        initiateMove(false,1);
    }
}).mouseover(function(){
    if(pluginData.currentlyMoving==false){
        var position=$(this).data('position');
        if(position==2||position==pluginData.totalFeatureCount){
            $(this).css("opacity",0.8);
        }
    }
if(options.pauseOnHover)setTimer(true);
    if(options.stopOnHover)options.autoPlay=0;
}).mouseout(function(){
    if(pluginData.currentlyMoving==false){
        var position=$(this).data('position');
        if(position==2||position==pluginData.totalFeatureCount){
            $(this).css("opacity",0.4);
        }
    }
if(options.pauseOnHover){
    setTimer(false);
}
});
$("a",pluginData.containerIDTag).live("click",function(event){
    var $parents=$(this).parentsUntil(pluginData.containerIDTag);
    $parents.each(function(){
        var position=$(this).data('position');
        if(position!=undefined){
            if(position!=1){
                if(position==pluginData.totalFeatureCount){
                    initiateMove(false,1);
                }else if(position==2){
                    initiateMove(true,1);
                }
                event.preventDefault();
                return false;
            }else{
                options.clickedCenter($(this));
            }
        }
    });
});
$(".tracker-individual-blip").live("click",function(){
    var goTo=$(this).attr("id").substring(8);
    var whereIsIt=pluginData.featuresContainer.find(".carousel-feature").eq(goTo-1).data('position');
    var currentlyAt=pluginData.currentCenterNum;
    if(goTo!=currentlyAt){
        var shortest=findShortestDistance(1,whereIsIt);
        if(shortest<0){
            initiateMove(false,(shortest*-1));
        }else{
            initiateMove(true,shortest);
        }
    }
});
});
};

$.fn.featureCarousel.defaults={
    largeFeatureWidth:0,
    largeFeatureHeight:0,
    smallFeatureWidth:.5,
    smallFeatureHeight:.5,
    topPadding:20,
    sidePadding:50,
    smallFeatureOffset:50,
    startingFeature:1,
    carouselSpeed:1000,
    autoPlay:4000,
    pauseOnHover:true,
    stopOnHover:false,
    trackerIndividual:true,
    trackerSummation:true,
    preload:true,
    displayCutoff:0,
    animationEasing:'swing',
    leftButtonTag:'#carousel-left',
    rightButtonTag:'#carousel-right',
    captionBelow:false,
    movedToCenter:$.noop,
    leavingCenter:$.noop,
    clickedCenter:$.noop
    };

})(jQuery);