/*
* jQuery Nivo Slider v2.6
* http://nivo.dev7studios.com
*
* Copyright 2011, Gilbert Pellegrom
* Free to use and abuse under the MIT license.
* http://www.opensource.org/licenses/mit-license.php
*
* March 2010
*/

(function($) {

    var NivoSlider = function(element, options){
//Defaults are below
var settings = $.extend({}, $.fn.nivoSlider.defaults, options);

        //Useful variables. Play carefully.
        var vars = {
            currentSlide: 0,
            currentImage: '',
            totalSlides: 0,
            randAnim: '',
            running: false,
            paused: false,
            stop: false
        };
    
        //Get this slider
        var slider = $(element);
        slider.data('nivo:vars', vars);
        slider.css('position','relative');
        slider.addClass('nivoSlider');
        
        //Find our slider children
        var kids = slider.children();
        kids.each(function() {
            var child = $(this);
            var link = '';
            if(!child.is('img')){
                if(child.is('a')){
                    child.addClass('nivo-imageLink');
                    link = child;
                }
                child = child.find('img:first');
            }
            //Get img width & height
            var childWidth = child.width();
            if(childWidth == 0) childWidth = child.attr('width');
            var childHeight = child.height();
            if(childHeight == 0) childHeight = child.attr('height');
            //Resize the slider
            if(childWidth > slider.width()){
                slider.width(childWidth);
            }
            if(childHeight > slider.height()){
                slider.height(childHeight);
            }
            if(link != ''){
                link.css('display','none');
            }
            child.css('display','none');
            vars.totalSlides++;
        });
        
        //Set startSlide
        if(settings.startSlide > 0){
            if(settings.startSlide >= vars.totalSlides) settings.startSlide = vars.totalSlides - 1;
            vars.currentSlide = settings.startSlide;
        }
        
        //Get initial image
        if($(kids[vars.currentSlide]).is('img')){
            vars.currentImage = $(kids[vars.currentSlide]);
        } else {
            vars.currentImage = $(kids[vars.currentSlide]).find('img:first');
        }
        
        //Show initial link
        if($(kids[vars.currentSlide]).is('a')){
            $(kids[vars.currentSlide]).css('display','block');
        }
        
        //Set first background
        slider.css('background','url("'+ vars.currentImage.attr('src') +'") no-repeat');

        //Create caption
        slider.append(
            $('<div class="nivo-caption"><p></p></div>').css({ display:'none', opacity:settings.captionOpacity })
        );

// Process caption function
var processCaption = function(settings){
var nivoCaption = $('.nivo-caption', slider);
if(vars.currentImage.attr('title') != '' && vars.currentImage.attr('title') != undefined){
var title = vars.currentImage.attr('title');
if(title.substr(0,1) == '#') title = $(title).html();

if(nivoCaption.css('display') == 'block'){
nivoCaption.find('p').fadeOut(settings.animSpeed, function(){
$(this).html(title);
$(this).fadeIn(settings.animSpeed);
});
} else {
nivoCaption.find('p').html(title);
}
nivoCaption.fadeIn(settings.animSpeed);
} else {
nivoCaption.fadeOut(settings.animSpeed);
}
}

        //Process initial caption
        processCaption(settings);
        
        //In the words of Super Mario "let's a go!"
        var timer = 0;
        if(!settings.manualAdvance && kids.length > 1){
            timer = setInterval(function(){ nivoRun(slider, kids, settings, false); }, settings.pauseTime);
        }

        //Add Direction nav
        if(settings.directionNav){
            slider.append('<div class="nivo-directionNav"><a class="nivo-prevNav">'+ settings.prevText +'</a><a class="nivo-nextNav">'+ settings.nextText +'</a></div>');
            
            //Hide Direction nav
            if(settings.directionNavHide){
                $('.nivo-directionNav', slider).hide();
                slider.hover(function(){
                    $('.nivo-directionNav', slider).show();
                }, function(){
                    $('.nivo-directionNav', slider).hide();
                });
            }
            
            $('a.nivo-prevNav', slider).live('click', function(){
                if(vars.running) return false;
                clearInterval(timer);
                timer = '';
                vars.currentSlide -= 2;
                nivoRun(slider, kids, settings, 'prev');
            });
            
            $('a.nivo-nextNav', slider).live('click', function(){
                if(vars.running) return false;
                clearInterval(timer);
                timer = '';
                nivoRun(slider, kids, settings, 'next');
            });
        }
        
        //Add Control nav
        if(settings.controlNav){
            var nivoControl = $('<div class="nivo-controlNav"></div>');
            slider.append(nivoControl);
            for(var i = 0; i < kids.length; i++){
                if(settings.controlNavThumbs){
                    var child = kids.eq(i);
                    if(!child.is('img')){
                        child = child.find('img:first');
                    }
                    if (settings.controlNavThumbsFromRel) {
                        nivoControl.append('<a class="nivo-control" rel="'+ i +'"><img src="'+ child.attr('rel') + '" alt="" /></a>');
                    } else {
                        nivoControl.append('<a class="nivo-control" rel="'+ i +'"><img src="'+ child.attr('src').replace(settings.controlNavThumbsSearch, settings.controlNavThumbsReplace) +'" alt="" /></a>');
                    }
                } else {
                    nivoControl.append('<a class="nivo-control" rel="'+ i +'">'+ (i + 1) +'</a>');
                }
                
            }
            //Set initial active link
            $('.nivo-controlNav a:eq('+ vars.currentSlide +')', slider).addClass('active');
            
            $('.nivo-controlNav a', slider).live('click', function(){
                if(vars.running) return false;
                if($(this).hasClass('active')) return false;
                clearInterval(timer);
                timer = '';
                slider.css('background','url("'+ vars.currentImage.attr('src') +'") no-repeat');
                vars.currentSlide = $(this).attr('rel') - 1;
                nivoRun(slider, kids, settings, 'control');
            });
        }
        
        //Keyboard Navigation
        if(settings.keyboardNav){
            $(window).keypress(function(event){
                //Left
                if(event.keyCode == '37'){
                    if(vars.running) return false;
                    clearInterval(timer);
                    timer = '';
                    vars.currentSlide-=2;
                    nivoRun(slider, kids, settings, 'prev');
                }
                //Right
                if(event.keyCode == '39'){
                    if(vars.running) return false;
                    clearInterval(timer);
                    timer = '';
                    nivoRun(slider, kids, settings, 'next');
                }
            });
        }
        
        //For pauseOnHover setting
        if(settings.pauseOnHover){
            slider.hover(function(){
                vars.paused = true;
                clearInterval(timer);
                timer = '';
            }, function(){
                vars.paused = false;
                //Restart the timer
                if(timer == '' && !settings.manualAdvance){
                    timer = setInterval(function(){ nivoRun(slider, kids, settings, false); }, settings.pauseTime);
                }
            });
        }
        
        //Event when Animation finishes
        slider.bind('nivo:animFinished', function(){
            vars.running = false;
            //Hide child links
            $(kids).each(function(){
                if($(this).is('a')){
                    $(this).css('display','none');
                }
            });
            //Show current link
            if($(kids[vars.currentSlide]).is('a')){
                $(kids[vars.currentSlide]).css('display','block');
            }
            //Restart the timer
            if(timer == '' && !vars.paused && !settings.manualAdvance){
                timer = setInterval(function(){ nivoRun(slider, kids, settings, false); }, settings.pauseTime);
            }
            //Trigger the afterChange callback
            settings.afterChange.call(this);
        });
        
        // Add slices for slice animations
        var createSlices = function(slider, settings, vars){
            for(var i = 0; i < settings.slices; i++){
var sliceWidth = Math.round(slider.width()/settings.slices);
if(i == settings.slices-1){
slider.append(
$('<div class="nivo-slice"></div>').css({
left:(sliceWidth*i)+'px', width:(slider.width()-(sliceWidth*i))+'px',
height:'0px',
opacity:'0',
background: 'url("'+ vars.currentImage.attr('src') +'") no-repeat -'+ ((sliceWidth + (i * sliceWidth)) - sliceWidth) +'px 0%'
})
);
} else {
slider.append(
$('<div class="nivo-slice"></div>').css({
left:(sliceWidth*i)+'px', width:sliceWidth+'px',
height:'0px',
opacity:'0',
background: 'url("'+ vars.currentImage.attr('src') +'") no-repeat -'+ ((sliceWidth + (i * sliceWidth)) - sliceWidth) +'px 0%'
})
);
}
}
        }

// Add boxes for box animations
var createBoxes = function(slider, settings, vars){
var boxWidth = Math.round(slider.width()/settings.boxCols);
var boxHeight = Math.round(slider.height()/settings.boxRows);

for(var rows = 0; rows < settings.boxRows; rows++){
for(var cols = 0; cols < settings.boxCols; cols++){
if(cols == settings.boxCols-1){
slider.append(
$('<div class="nivo-box"></div>').css({
opacity:0,
left:(boxWidth*cols)+'px',
top:(boxHeight*rows)+'px',
width:(slider.width()-(boxWidth*cols))+'px',
height:boxHeight+'px',
background: 'url("'+ vars.currentImage.attr('src') +'") no-repeat -'+ ((boxWidth + (cols * boxWidth)) - boxWidth) +'px -'+ ((boxHeight + (rows * boxHeight)) - boxHeight) +'px'
})
);
} else {
slider.append(
$('<div class="nivo-box"></div>').css({
opacity:0,
left:(boxWidth*cols)+'px',
top:(boxHeight*rows)+'px',
width:boxWidth+'px',
height:boxHeight+'px',
background: 'url("'+ vars.currentImage.attr('src') +'") no-repeat -'+ ((boxWidth + (cols * boxWidth)) - boxWidth) +'px -'+ ((boxHeight + (rows * boxHeight)) - boxHeight) +'px'
})
);
}
}
}
}

        // Private run method
var nivoRun = function(slider, kids, settings, nudge){
//Get our vars
var vars = slider.data('nivo:vars');
            
            //Trigger the lastSlide callback
            if(vars && (vars.currentSlide == vars.totalSlides - 1)){
settings.lastSlide.call(this);
}
            
            // Stop
if((!vars || vars.stop) && !nudge) return false;

//Trigger the beforeChange callback
settings.beforeChange.call(this);

//Set current background before change
if(!nudge){
slider.css('background','url("'+ vars.currentImage.attr('src') +'") no-repeat');
} else {
if(nudge == 'prev'){
slider.css('background','url("'+ vars.currentImage.attr('src') +'") no-repeat');
}
if(nudge == 'next'){
slider.css('background','url("'+ vars.currentImage.attr('src') +'") no-repeat');
}
}
vars.currentSlide++;
            //Trigger the slideshowEnd callback
if(vars.currentSlide == vars.totalSlides){
vars.currentSlide = 0;
settings.slideshowEnd.call(this);
}
if(vars.currentSlide < 0) vars.currentSlide = (vars.totalSlides - 1);
//Set vars.currentImage
if($(kids[vars.currentSlide]).is('img')){
vars.currentImage = $(kids[vars.currentSlide]);
} else {
vars.currentImage = $(kids[vars.currentSlide]).find('img:first');
}

//Set active links
if(settings.controlNav){
$('.nivo-controlNav a', slider).removeClass('active');
$('.nivo-controlNav a:eq('+ vars.currentSlide +')', slider).addClass('active');
}

//Process caption
processCaption(settings);

// Remove any slices from last transition
$('.nivo-slice', slider).remove();

// Remove any boxes from last transition
$('.nivo-box', slider).remove();

if(settings.effect == 'random'){
var anims = new Array('sliceDownRight','sliceDownLeft','sliceUpRight','sliceUpLeft','sliceUpDown','sliceUpDownLeft','fold','fade',
                'boxRandom','boxRain','boxRainReverse','boxRainGrow','boxRainGrowReverse');
vars.randAnim = anims[Math.floor(Math.random()*(anims.length + 1))];
if(vars.randAnim == undefined) vars.randAnim = 'fade';
}
            
            //Run random effect from specified set (eg: effect:'fold,fade')
            if(settings.effect.indexOf(',') != -1){
                var anims = settings.effect.split(',');
                vars.randAnim = anims[Math.floor(Math.random()*(anims.length))];
if(vars.randAnim == undefined) vars.randAnim = 'fade';
            }

//Run effects
vars.running = true;
if(settings.effect == 'sliceDown' || settings.effect == 'sliceDownRight' || vars.randAnim == 'sliceDownRight' ||
settings.effect == 'sliceDownLeft' || vars.randAnim == 'sliceDownLeft'){
createSlices(slider, settings, vars);
var timeBuff = 0;
var i = 0;
var slices = $('.nivo-slice', slider);
if(settings.effect == 'sliceDownLeft' || vars.randAnim == 'sliceDownLeft') slices = $('.nivo-slice', slider)._reverse();

slices.each(function(){
var slice = $(this);
slice.css({ 'top': '0px' });
if(i == settings.slices-1){
setTimeout(function(){
slice.animate({ height:'100%', opacity:'1.0' }, settings.animSpeed, '', function(){ slider.trigger('nivo:animFinished'); });
}, (100 + timeBuff));
} else {
setTimeout(function(){
slice.animate({ height:'100%', opacity:'1.0' }, settings.animSpeed);
}, (100 + timeBuff));
}
timeBuff += 50;
i++;
});
}
else if(settings.effect == 'sliceUp' || settings.effect == 'sliceUpRight' || vars.randAnim == 'sliceUpRight' ||
settings.effect == 'sliceUpLeft' || vars.randAnim == 'sliceUpLeft'){
createSlices(slider, settings, vars);
var timeBuff = 0;
var i = 0;
var slices = $('.nivo-slice', slider);
if(settings.effect == 'sliceUpLeft' || vars.randAnim == 'sliceUpLeft') slices = $('.nivo-slice', slider)._reverse();

slices.each(function(){
var slice = $(this);
slice.css({ 'bottom': '0px' });
if(i == settings.slices-1){
setTimeout(function(){
slice.animate({ height:'100%', opacity:'1.0' }, settings.animSpeed, '', function(){ slider.trigger('nivo:animFinished'); });
}, (100 + timeBuff));
} else {
setTimeout(function(){
slice.animate({ height:'100%', opacity:'1.0' }, settings.animSpeed);
}, (100 + timeBuff));
}
timeBuff += 50;
i++;
});
}
else if(settings.effect == 'sliceUpDown' || settings.effect == 'sliceUpDownRight' || vars.randAnim == 'sliceUpDown' ||
settings.effect == 'sliceUpDownLeft' || vars.randAnim == 'sliceUpDownLeft'){
createSlices(slider, settings, vars);
var timeBuff = 0;
var i = 0;
var v = 0;
var slices = $('.nivo-slice', slider);
if(settings.effect == 'sliceUpDownLeft' || vars.randAnim == 'sliceUpDownLeft') slices = $('.nivo-slice', slider)._reverse();

slices.each(function(){
var slice = $(this);
if(i == 0){
slice.css('top','0px');
i++;
} else {
slice.css('bottom','0px');
i = 0;
}

if(v == settings.slices-1){
setTimeout(function(){
slice.animate({ height:'100%', opacity:'1.0' }, settings.animSpeed, '', function(){ slider.trigger('nivo:animFinished'); });
}, (100 + timeBuff));
} else {
setTimeout(function(){
slice.animate({ height:'100%', opacity:'1.0' }, settings.animSpeed);
}, (100 + timeBuff));
}
timeBuff += 50;
v++;
});
}
else if(settings.effect == 'fold' || vars.randAnim == 'fold'){
createSlices(slider, settings, vars);
var timeBuff = 0;
var i = 0;

$('.nivo-slice', slider).each(function(){
var slice = $(this);
var origWidth = slice.width();
slice.css({ top:'0px', height:'100%', width:'0px' });
if(i == settings.slices-1){
setTimeout(function(){
slice.animate({ width:origWidth, opacity:'1.0' }, settings.animSpeed, '', function(){ slider.trigger('nivo:animFinished'); });
}, (100 + timeBuff));
} else {
setTimeout(function(){
slice.animate({ width:origWidth, opacity:'1.0' }, settings.animSpeed);
}, (100 + timeBuff));
}
timeBuff += 50;
i++;
});
}
else if(settings.effect == 'fade' || vars.randAnim == 'fade'){
createSlices(slider, settings, vars);

var firstSlice = $('.nivo-slice:first', slider);
                firstSlice.css({
                    'height': '100%',
                    'width': slider.width() + 'px'
                });
    
firstSlice.animate({ opacity:'1.0' }, (settings.animSpeed*2), '', function(){ slider.trigger('nivo:animFinished'); });
}
            else if(settings.effect == 'slideInRight' || vars.randAnim == 'slideInRight'){
createSlices(slider, settings, vars);

                var firstSlice = $('.nivo-slice:first', slider);
                firstSlice.css({
                    'height': '100%',
                    'width': '0px',
                    'opacity': '1'
                });

                firstSlice.animate({ width: slider.width() + 'px' }, (settings.animSpeed*2), '', function(){ slider.trigger('nivo:animFinished'); });
            }
            else if(settings.effect == 'slideInLeft' || vars.randAnim == 'slideInLeft'){
createSlices(slider, settings, vars);

                var firstSlice = $('.nivo-slice:first', slider);
                firstSlice.css({
                    'height': '100%',
                    'width': '0px',
                    'opacity': '1',
                    'left': '',
                    'right': '0px'
                });

                firstSlice.animate({ width: slider.width() + 'px' }, (settings.animSpeed*2), '', function(){
                    // Reset positioning
                    firstSlice.css({
                        'left': '0px',
                        'right': ''
                    });
                    slider.trigger('nivo:animFinished');
                });
            }
else if(settings.effect == 'boxRandom' || vars.randAnim == 'boxRandom'){
createBoxes(slider, settings, vars);

var totalBoxes = settings.boxCols * settings.boxRows;
var i = 0;
var timeBuff = 0;

var boxes = shuffle($('.nivo-box', slider));
boxes.each(function(){
var box = $(this);
if(i == totalBoxes-1){
setTimeout(function(){
box.animate({ opacity:'1' }, settings.animSpeed, '', function(){ slider.trigger('nivo:animFinished'); });
}, (100 + timeBuff));
} else {
setTimeout(function(){
box.animate({ opacity:'1' }, settings.animSpeed);
}, (100 + timeBuff));
}
timeBuff += 20;
i++;
});
}
else if(settings.effect == 'boxRain' || vars.randAnim == 'boxRain' || settings.effect == 'boxRainReverse' || vars.randAnim == 'boxRainReverse' ||
                    settings.effect == 'boxRainGrow' || vars.randAnim == 'boxRainGrow' || settings.effect == 'boxRainGrowReverse' || vars.randAnim == 'boxRainGrowReverse'){
createBoxes(slider, settings, vars);

var totalBoxes = settings.boxCols * settings.boxRows;
var i = 0;
var timeBuff = 0;

// Split boxes into 2D array
var rowIndex = 0;
var colIndex = 0;
var box2Darr = new Array();
box2Darr[rowIndex] = new Array();
var boxes = $('.nivo-box', slider);
if(settings.effect == 'boxRainReverse' || vars.randAnim == 'boxRainReverse' ||
                   settings.effect == 'boxRainGrowReverse' || vars.randAnim == 'boxRainGrowReverse'){
boxes = $('.nivo-box', slider)._reverse();
}
boxes.each(function(){
box2Darr[rowIndex][colIndex] = $(this);
colIndex++;
if(colIndex == settings.boxCols){
rowIndex++;
colIndex = 0;
box2Darr[rowIndex] = new Array();
}
});

// Run animation
for(var cols = 0; cols < (settings.boxCols * 2); cols++){
var prevCol = cols;
for(var rows = 0; rows < settings.boxRows; rows++){
if(prevCol >= 0 && prevCol < settings.boxCols){
/* Due to some weird JS bug with loop vars
being used in setTimeout, this is wrapped
with an anonymous function call */
(function(row, col, time, i, totalBoxes) {
var box = $(box2Darr[row][col]);
                                var w = box.width();
                                var h = box.height();
                                if(settings.effect == 'boxRainGrow' || vars.randAnim == 'boxRainGrow' ||
                                   settings.effect == 'boxRainGrowReverse' || vars.randAnim == 'boxRainGrowReverse'){
                                    box.width(0).height(0);
                                }
if(i == totalBoxes-1){
setTimeout(function(){
box.animate({ opacity:'1', width:w, height:h }, settings.animSpeed/1.3, '', function(){ slider.trigger('nivo:animFinished'); });
}, (100 + time));
} else {
setTimeout(function(){
box.animate({ opacity:'1', width:w, height:h }, settings.animSpeed/1.3);
}, (100 + time));
}
})(rows, prevCol, timeBuff, i, totalBoxes);
i++;
}
prevCol--;
}
timeBuff += 100;
}
}
}

// Shuffle an array
var shuffle = function(arr){
for(var j, x, i = arr.length; i; j = parseInt(Math.random() * i), x = arr[--i], arr[i] = arr[j], arr[j] = x);
return arr;
}
        
        // For debugging
        var trace = function(msg){
            if (this.console && typeof console.log != "undefined")
                console.log(msg);
        }
        
        // Start / Stop
        this.stop = function(){
            if(!$(element).data('nivo:vars').stop){
                $(element).data('nivo:vars').stop = true;
                trace('Stop Slider');
            }
        }
        
        this.start = function(){
            if($(element).data('nivo:vars').stop){
                $(element).data('nivo:vars').stop = false;
                trace('Start Slider');
            }
        }
        
        //Trigger the afterLoad callback
        settings.afterLoad.call(this);

return this;
    };
        
    $.fn.nivoSlider = function(options) {
    
        return this.each(function(key, value){
            var element = $(this);
            // Return early if this element already has a plugin instance
            if (element.data('nivoslider')) return element.data('nivoslider');
            // Pass options to plugin constructor
            var nivoslider = new NivoSlider(this, options);
            // Store plugin object in this element's data
            element.data('nivoslider', nivoslider);
        });

};

//Default settings
$.fn.nivoSlider.defaults = {
effect: 'fade', //Specify sets like: 'fold,fade,sliceDown'
slices: 15,
boxCols: 8,
boxRows: 4,
animSpeed: 500,
pauseTime: 3000,
startSlide: 0,
directionNav: true,
directionNavHide: false,
controlNav: true,
controlNavThumbs: false,
controlNavThumbsFromRel: false,
controlNavThumbsSearch: '.jpg',
controlNavThumbsReplace: '_thumb.jpg',
keyboardNav: true,
pauseOnHover: true,
manualAdvance: false,
captionOpacity: 1,
prevText: 'Prev',
nextText: 'Next',
beforeChange: function(){},
afterChange: function(){},
slideshowEnd: function(){},
        lastSlide: function(){},
        afterLoad: function(){}
};

$.fn._reverse = [].reverse;

})(jQuery);