/*
* 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');
			// Modified By Barzi
			// 1:30 PM Wednesday, 26 October 2011
			$(".nivo-clicker").attr("rel", vars.currentImage.attr('alt'))
			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: 'random',
	slices: 15,
	boxCols: 8,
	boxRows: 4,
	animSpeed: 500,
	pauseTime: 3000,
	startSlide: 0,
	directionNav: true,
	directionNavHide: true,
	controlNav: true,
	controlNavThumbs: false,
	controlNavThumbsFromRel: false,
	controlNavThumbsSearch: '.jpg',
	controlNavThumbsReplace: '_thumb.jpg',
	keyboardNav: true,
	pauseOnHover: true,
	manualAdvance: false,
	captionOpacity: 0.8,
	prevText: 'Prev',
	nextText: 'Next',
	beforeChange: function(){},
	afterChange: function(){
		$(".nivo-clicker").unbind("click").click(function(){
			location.href = $(this).attr("rel")
		})	
	},
	slideshowEnd: function(){},
	lastSlide: function(){},
	afterLoad: function(){}
};

$.fn._reverse = [].reverse;

})(jQuery);