/**
 * jquery.flipshow.js v1.0.0
 * http://www.codrops.com
 *
 * Licensed under the MIT license.
 * http://www.opensource.org/licenses/mit-license.php
 *
 * Copyright 2013, Codrops
 * http://www.codrops.com
 */

/* Modernizr 2.8.3 (Custom Build) | MIT & BSD
 * Build: http://modernizr.com/download/#-fontface-backgroundsize-borderimage-borderradius-boxshadow-flexbox-hsla-multiplebgs-opacity-rgba-textshadow-cssanimations-csscolumns-generatedcontent-cssgradients-cssreflections-csstransforms-csstransforms3d-csstransitions-applicationcache-canvas-canvastext-draganddrop-hashchange-history-audio-video-indexeddb-input-inputtypes-localstorage-postmessage-sessionstorage-websockets-websqldatabase-webworkers-geolocation-inlinesvg-smil-svg-svgclippaths-touch-webgl-shiv-cssclasses-addtest-prefixed-teststyles-testprop-testallprops-hasevent-prefixes-domprefixes-load
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	'use strict';

	// ======================= imagesLoaded Plugin ===============================
	// https://github.com/desandro/imagesloaded

	// $('#my-container').imagesLoaded(myFunction)
	// execute a callback when all images have loaded.
	// needed because .load() doesn't work on cached images

	// callback function gets image collection as argument
	//  this is the container

	// original: mit license. paul irish. 2010.
	// contributors: Oren Solomianik, David DeSandro, Yiannis Chatzikonstantinou

	// blank image data-uri bypasses webkit log warning (thx doug jones)
	// blank image data-uri bypasses webkit log warning (thx doug jones)
	var BLANK = 'data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==';

	$.fn.imagesLoaded = function( callback ) {
		var $this = this,
			deferred = $.isFunction($.Deferred) ? $.Deferred() : 0,
			hasNotify = $.isFunction(deferred.notify),
			$images = $this.find('img').add( $this.filter('img') ),
			loaded = [],
			proper = [],
			broken = [];

		// Register deferred callbacks
		if ($.isPlainObject(callback)) {
			$.each(callback, function (key, value) {
				if (key === 'callback') {
					callback = value;
				} else if (deferred) {
					deferred[key](value);
				}
			});
		}

		function doneLoading() {
			var $proper = $(proper),
				$broken = $(broken);

			if ( deferred ) {
				if ( broken.length ) {
					deferred.reject( $images, $proper, $broken );
				} else {
					deferred.resolve( $images );
				}
			}

			if ( $.isFunction( callback ) ) {
				callback.call( $this, $images, $proper, $broken );
			}
		}

		function imgLoadedHandler( event ) {
			imgLoaded( event.target, event.type === 'error' );
		}

		function imgLoaded( img, isBroken ) {
			// don't proceed if BLANK image, or image is already loaded
			if ( img.src === BLANK || $.inArray( img, loaded ) !== -1 ) {
				return;
			}

			// store element in loaded images array
			loaded.push( img );

			// keep track of broken and properly loaded images
			if ( isBroken ) {
				broken.push( img );
			} else {
				proper.push( img );
			}

			// cache image and its state for future calls
			$.data( img, 'imagesLoaded', { isBroken: isBroken, src: img.src } );

			// trigger deferred progress method if present
			if ( hasNotify ) {
				deferred.notifyWith( $(img), [ isBroken, $images, $(proper), $(broken) ] );
			}

			// call doneLoading and clean listeners if all images are loaded
			if ( $images.length === loaded.length ) {
				setTimeout( doneLoading );
				$images.unbind( '.imagesLoaded', imgLoadedHandler );
			}
		}

		// if no images, trigger immediately
		if ( !$images.length ) {
			doneLoading();
		} else {
			$images.bind( 'load.imagesLoaded error.imagesLoaded', imgLoadedHandler )
			.each( function( i, el ) {
				var src = el.src;

				// find out if this image has been already checked for status
				// if it was, and src has not changed, call imgLoaded on it
				var cached = $.data( el, 'imagesLoaded' );
				if ( cached && cached.src === src ) {
					imgLoaded( el, cached.isBroken );
					return;
				}

				// if complete is true and browser supports natural sizes, try
				// to check for image status manually
				if ( el.complete && el.naturalWidth !== undefined ) {
					imgLoaded( el, el.naturalWidth === 0 || el.naturalHeight === 0 );
					return;
				}

				// cached images don't fire load sometimes, so we reset src, but only when
				// dealing with IE, or image is complete (loaded) and failed manual check
				// webkit hack from http://groups.google.com/group/jquery-dev/browse_thread/thread/eee6ab7b2da50e1f
				if ( el.readyState || el.complete ) {
					el.src = BLANK;
					el.src = src;
				}
			});
		}

		return deferred ? deferred.promise( $this ) : $this;
	};

	// global
	var Modernizr = window.Modernizr;

	$.Flipshow = function( options, element ) {
		this.$el = $( element );
		this._init( options );
	};

	// the options
	$.Flipshow.defaults = {
		// default transition speed (ms)
		speed : 700,
		// default transition easing
		easing : 'ease-out'
	};

	$.Flipshow.prototype = {
		_init : function( options ) {

			// options
			this.options = $.extend( true, {}, $.Flipshow.defaults, options );
			// support for CSS Transitions & 3D transforms
			this.support = Modernizr.csstransitions && Modernizr.csstransforms3d && !(/MSIE (\d+\.\d+);/.test(navigator.userAgent));
			// transition end event name and transform name
			var transEndEventNames = {
					'WebkitTransition' : 'webkitTransitionEnd',
					'MozTransition' : 'transitionend',
					'OTransition' : 'oTransitionEnd',
					'msTransition' : 'MSTransitionEnd',
					'transition' : 'transitionend'
				},
				transformNames = {
					'WebkitTransform' : '-webkit-transform',
					'MozTransform' : '-moz-transform',
					'OTransform' : '-o-transform',
					'msTransform' : '-ms-transform',
					'transform' : 'transform'
				};

			if( this.support ) {
				this.transEndEventName = transEndEventNames[ Modernizr.prefixed( 'transition' ) ] + '.cbpFWSlider';
				this.transformName = transformNames[ Modernizr.prefixed( 'transform' ) ];
			}
			this.transitionProperties = this.transformName + ' ' + this.options.speed + 'ms ' + this.options.easing;

			// the list of items
			this.$listItems = this.$el.children( 'ul.fc-slides' );
			// the items
			this.$items = this.$listItems.children( 'li' ).hide();
			// total number of items
			this.itemsCount = this.$items.length;
			// current item´s index
			this.current = 0;
			this.$listItems.imagesLoaded( $.proxy( function() {
				// show first item
				this.$items.eq( this.current ).show();
				// add navigation and flipping structure
				if( this.itemsCount > 0 ) {
					this._addNav();
					if( this.support ) {
						this._layout();
					}
				}
			}, this ) );

		},
		_addNav : function() {

			var self = this,
				$navLeft = $( '<div class="fc-left"><span></span><span></span><span></span><i class="fa fa-arrow-left"></i></div>' ),
				$navRight = $( '<div class="fc-right"><span></span><span></span><span></span><i class="fa fa-arrow-right"></i></div>' );

			$( '<nav></nav>' ).append( $navLeft, $navRight ).appendTo( this.$el );

			$navLeft.find( 'span' ).on( 'click.flipshow touchstart.flipshow', function() {
				self._navigate( $( this ), 'left' );
			} );

			$navRight.find( 'span' ).on( 'click.flipshow touchstart.flipshow', function() {
				self._navigate( $( this ), 'right' );
			} );

		},
		_layout : function( $current, $next ) {

			this.$flipFront = $( '<div class="fc-front"><div></div></div>' );
			this.$frontContent = this.$flipFront.children( 'div:first' );
			this.$flipBack = $( '<div class="fc-back"><div></div></div>' );
			this.$backContent = this.$flipBack.children( 'div:first' );
			this.$flipEl = $( '<div class="fc-flip"></div>' ).append( this.$flipFront, this.$flipBack ).hide().appendTo( this.$el );

		},
		_navigate : function( $nav, dir ) {

			if( this.isAnimating && this.support ) {
				return false;
			}
			this.isAnimating = true;

			var $currentItem = this.$items.eq( this.current ).hide();

			if( dir === 'right' ) {
				this.current < this.itemsCount - 1 ? ++this.current : this.current = 0;
			}
			else if( dir === 'left' ) {
				this.current > 0 ? --this.current : this.current = this.itemsCount - 1;
			}

			var $nextItem = this.$items.eq( this.current );

			if( this.support ) {
				this._flip( $currentItem, $nextItem, dir, $nav.index() );
			}
			else {
				$nextItem.show();
			}

		},
		_flip : function( $currentItem, $nextItem, dir, angle ) {

			var transformProperties = '',
				// overlays
				$overlayLight = $( '<div class="fc-overlay-light"></div>' ),
				$overlayDark = $( '<div class="fc-overlay-dark"></div>' );

			if(typeof this.$flipEl == 'undefined') {
				return;
			}

			this.$flipEl.css( 'transition', this.transitionProperties );

			this.$flipFront.find( 'div.fc-overlay-light, div.fc-overlay-dark' ).remove();
			this.$flipBack.find( 'div.fc-overlay-light, div.fc-overlay-dark' ).remove();

			if( dir === 'right' ) {
				this.$flipFront.append( $overlayLight );
				this.$flipBack.append( $overlayDark );
				$overlayDark.css( 'opacity', 1 );
			}
			else if( dir === 'left' ) {
				this.$flipFront.append( $overlayDark );
				this.$flipBack.append( $overlayLight );
				$overlayLight.css( 'opacity', 1 );
			}
			var overlayStyle = { transition : 'opacity ' + ( this.options.speed / 1.3 ) + 'ms' };
			$overlayLight.css( overlayStyle );
			$overlayDark.css( overlayStyle );

			switch( angle ) {
				case 0 :
					transformProperties = dir === 'left' ? 'rotate3d(-1,1,0,-179deg) rotate3d(-1,1,0,-1deg)' : 'rotate3d(1,1,0,180deg)';
					break;
				case 1 :
					transformProperties = dir === 'left' ? 'rotate3d(0,1,0,-179deg) rotate3d(0,1,0,-1deg)' : 'rotate3d(0,1,0,180deg)';
					break;
				case 2 :
					transformProperties = dir === 'left' ? 'rotate3d(1,1,0,-179deg) rotate3d(1,1,0,-1deg)' : 'rotate3d(-1,1,0,179deg) rotate3d(-1,1,0,1deg)';
					break;
			}

			this.$flipBack.css( 'transform', transformProperties );

			this.$frontContent.empty().html( $currentItem.html() );
			this.$backContent.empty().html( $nextItem.html() );
			this.$flipEl.show();

			var self = this;
			setTimeout( function() {

				self.$flipEl.css( 'transform', transformProperties );
				$overlayLight.css( 'opacity', dir === 'right' ? 1 : 0 );
				$overlayDark.css( 'opacity', dir === 'right' ? 0 : 1 );
				self.$flipEl.on( self.transEndEventName, function( event ) {
					if( event.target.className === 'fc-overlay-light' || event.target.className === 'fc-overlay-dark' ) return;
					self._ontransitionend( $nextItem );
				} );

			}, 25 );

		},
		_ontransitionend : function( $nextItem ) {
			$nextItem.show();
			this.$flipEl.off( this.transEndEventName ).css( {
				transition : 'none',
				transform : 'none'
			} ).hide();
			this.isAnimating = false;
		}
	};

	var logError = function( message ) {
		if ( window.console ) {
			window.console.error( message );
		}
	};

	$.fn.flipshow = function( options ) {
		if ( typeof options === 'string' ) {
			var args = Array.prototype.slice.call( arguments, 1 );
			this.each(function() {
				var instance = $.data( this, 'flipshow' );
				if ( !instance ) {
					logError( "cannot call methods on flipshow prior to initialization; " +
					"attempted to call method '" + options + "'" );
					return;
				}
				if ( !$.isFunction( instance[options] ) || options.charAt(0) === "_" ) {
					logError( "no such method '" + options + "' for flipshow instance" );
					return;
				}
				instance[ options ].apply( instance, args );
			});
		}
		else {
			this.each(function() {
				var instance = $.data( this, 'flipshow' );
				if ( instance ) {
					instance._init();
				}
				else {
					instance = $.data( this, 'flipshow', new $.Flipshow( options, this ) );
				}
			});
		}
		return this;
	};

} )( jQuery, window );