/*
 * jQuery Nivo Slider v2.3
 * http://nivo.dev7studios.com
 *
 * Copyright 2010, Gilbert Pellegrom
 * Free to use and abuse under the MIT license.
 * http://www.opensource.org/licenses/mit-license.php
 * 
 * May 2010 - Pick random effect from specified set of effects by toronegro
 * May 2010 - controlNavThumbsFromRel option added by nerd-sh
 * May 2010 - Do not start nivoRun timer if there is only 1 slide by msielski
 * April 2010 - controlNavThumbs option added by Jamie Thompson (http://jamiethompson.co.uk)
 * March 2010 - manualAdvance option added by HelloPablo (http://hellopablo.co.uk)
 */

(function($) {
	var NivoSlider = function(element, options) {
		var settings = $.extend({}, $.fn.nivoSlider.defaults, options);
		var vars = {
			currentSlide : 0,
			currentImage : '',
			totalSlides : 0,
			randAnim : '',
			running : false,
			paused : false,
			stop : false
		};
		var slider = $(element);
		slider.data('nivo:vars', vars);
		slider.css('position', 'relative');
		slider.addClass('nivoSlider');
		var kids = slider.children();
		kids.each(function() {
			var child = $(this);
			var link = '';
			if (!child.is('img')) {
				if (child.is('a')) {
					child.addClass('nivo-imageLink');
					link = child;
				}
				child = child.find('img:first');
			}
			var childWidth = child.width();
			if (childWidth == 0)
				childWidth = child.attr('width');
			var childHeight = child.height();
			if (childHeight == 0)
				childHeight = child.attr('height');
			if (childWidth > slider.width()) {
				slider.width(childWidth);
			}
			if (childHeight > slider.height()) {
				//slider.height(childHeight);
			}
			if (link != '') {
				link.css('display', 'none');
			}
			child.css('display', 'none');
			vars.totalSlides++;
		});
		if (settings.startSlide > 0) {
			if (settings.startSlide >= vars.totalSlides)
				settings.startSlide = vars.totalSlides - 1;
			vars.currentSlide = settings.startSlide;
		}
		if ($(kids[vars.currentSlide]).is('img')) {
			vars.currentImage = $(kids[vars.currentSlide]);
		} else {
			vars.currentImage = $(kids[vars.currentSlide]).find('img:first');
		}
		if ($(kids[vars.currentSlide]).is('a')) {
			$(kids[vars.currentSlide]).css('display', 'block');
		}
		slider.css('background', 'url("' + vars.currentImage.attr('src')
				+ '") no-repeat');
		for ( var i = 0; i < settings.slices; i++) {
			var sliceWidth = Math.round(slider.width() / settings.slices);
			if (i == settings.slices - 1) {
				slider.append($('<div class="nivo-slice"></div>').css({
					left : (sliceWidth * i) + 'px',
					width : (slider.width() - (sliceWidth * i)) + 'px'
				}));
			} else {
				slider.append($('<div class="nivo-slice"></div>').css({
					left : (sliceWidth * i) + 'px',
					width : sliceWidth + 'px'
				}));
			}
		}
		slider.append($('<div class="nivo-caption"><p></p></div>').css({
			display : 'none',
			opacity : settings.captionOpacity
		}));
		if (vars.currentImage.attr('title') != '') {
			var title = vars.currentImage.attr('title');
			if (title.substr(0, 1) == '#')
				title = $(title).html();
			$('.nivo-caption p', slider).html(title);
			$('.nivo-caption', slider).fadeIn(settings.animSpeed);
		}
		var timer = 0;
		if (!settings.manualAdvance && kids.length > 1) {
			timer = setInterval(function() {
				nivoRun(slider, kids, settings, false);
			}, settings.pauseTime);
		}
		if (settings.directionNav) {
			slider
					.append('<div class="nivo-directionNav"><a class="nivo-prevNav">Prev</a><a class="nivo-nextNav">Next</a></div>');
			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');
			});
		}
		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>');
				}
			}
			$('.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');
					});
		}
		if (settings.keyboardNav) {
			$(window).keypress(function(event) {
				if (event.keyCode == '37') {
					if (vars.running)
						return false;
					clearInterval(timer);
					timer = '';
					vars.currentSlide -= 2;
					nivoRun(slider, kids, settings, 'prev');
				}
				if (event.keyCode == '39') {
					if (vars.running)
						return false;
					clearInterval(timer);
					timer = '';
					nivoRun(slider, kids, settings, 'next');
				}
			});
		}
		if (settings.pauseOnHover) {
			slider.hover(function() {
				vars.paused = true;
				clearInterval(timer);
				timer = '';
			}, function() {
				vars.paused = false;
				if (timer == '' && !settings.manualAdvance) {
					timer = setInterval(function() {
						nivoRun(slider, kids, settings, false);
					}, settings.pauseTime);
				}
			});
		}
		slider.bind('nivo:animFinished', function() {
			vars.running = false;
			$(kids).each(function() {
				if ($(this).is('a')) {
					$(this).css('display', 'none');
				}
			});
			if ($(kids[vars.currentSlide]).is('a')) {
				$(kids[vars.currentSlide]).css('display', 'block');
			}
			if (timer == '' && !vars.paused && !settings.manualAdvance) {
				timer = setInterval(function() {
					nivoRun(slider, kids, settings, false);
				}, settings.pauseTime);
			}
			settings.afterChange.call(this);
		});
		var nivoRun = function(slider, kids, settings, nudge) {
			var vars = slider.data('nivo:vars');
			if (vars && (vars.currentSlide == vars.totalSlides - 1)) {
				settings.lastSlide.call(this);
			}
			if ((!vars || vars.stop) && !nudge)
				return false;
			settings.beforeChange.call(this);
			if (!nudge) {
				slider.css('background', 'url("'
						+ vars.currentImage.attr('src') + '") no-repeat');
			} else {
				if (nudge == 'prev') {
					slider.css('background', 'url("'
							+ vars.currentImage.attr('src') + '") no-repeat');
				}
				if (nudge == 'next') {
					slider.css('background', 'url("'
							+ vars.currentImage.attr('src') + '") no-repeat');
				}
			}
			vars.currentSlide++;
			if (vars.currentSlide == vars.totalSlides) {
				vars.currentSlide = 0;
				settings.slideshowEnd.call(this);
			}
			if (vars.currentSlide < 0)
				vars.currentSlide = (vars.totalSlides - 1);
			if ($(kids[vars.currentSlide]).is('img')) {
				vars.currentImage = $(kids[vars.currentSlide]);
			} else {
				vars.currentImage = $(kids[vars.currentSlide])
						.find('img:first');
			}
			if (settings.controlNav) {
				$('.nivo-controlNav a', slider).removeClass('active');
				$('.nivo-controlNav a:eq(' + vars.currentSlide + ')', slider)
						.addClass('active');
			}
			if (vars.currentImage.attr('title') != '') {
				var title = vars.currentImage.attr('title');
				if (title.substr(0, 1) == '#')
					title = $(title).html();
				if ($('.nivo-caption', slider).css('display') == 'block') {
					$('.nivo-caption p', slider).fadeOut(settings.animSpeed,
							function() {
								$(this).html(title);
								$(this).fadeIn(settings.animSpeed);
							});
				} else {
					$('.nivo-caption p', slider).html(title);
				}
				$('.nivo-caption', slider).fadeIn(settings.animSpeed);
			} else {
				$('.nivo-caption', slider).fadeOut(settings.animSpeed);
			}
			var i = 0;
			$('.nivo-slice', slider)
					.each(
							function() {
								var sliceWidth = Math.round(slider.width()
										/ settings.slices);
								$(this)
										.css(
												{
													height : '0px',
													opacity : '0',
													background : 'url("'
															+ vars.currentImage
																	.attr('src')
															+ '") no-repeat -'
															+ ((sliceWidth + (i * sliceWidth)) - sliceWidth)
															+ 'px 0%'
												});
								i++;
							});
			if (settings.effect == 'random') {
				var anims = new Array("sliceDownRight", "sliceDownLeft",
						"sliceUpRight", "sliceUpLeft", "sliceUpDown",
						"sliceUpDownLeft", "fold", "fade");
				vars.randAnim = anims[Math.floor(Math.random()
						* (anims.length + 1))];
				if (vars.randAnim == undefined)
					vars.randAnim = 'fade';
			}
			if (settings.effect.indexOf(',') != -1) {
				var anims = settings.effect.split(',');
				vars.randAnim = $.trim(anims[Math.floor(Math.random()
						* anims.length)]);
			}
			vars.running = true;
			if (settings.effect == 'sliceDown'
					|| settings.effect == 'sliceDownRight'
					|| vars.randAnim == 'sliceDownRight'
					|| settings.effect == 'sliceDownLeft'
					|| vars.randAnim == 'sliceDownLeft') {
				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') {
				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') {
				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') {
				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') {
				var i = 0;
				$('.nivo-slice', slider).each(function() {
					$(this).css('height', '100%');
					if (i == settings.slices - 1) {
						$(this).animate({
							opacity : '1.0'
						}, (settings.animSpeed * 2), '', function() {
							slider.trigger('nivo:animFinished');
						});
					} else {
						$(this).animate({
							opacity : '1.0'
						}, (settings.animSpeed * 2));
					}
					i++;
				});
			}
		}
		var trace = function(msg) {
			if (this.console && typeof console.log != "undefined")
				console.log(msg);
		}
		this.stop = function() {
			if (!$(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');
			}
		}
		settings.afterLoad.call(this);
	};
	$.fn.nivoSlider = function(options) {
		return this.each(function() {
			var element = $(this);
			if (element.data('nivoslider'))
				return;
			var nivoslider = new NivoSlider(this, options);
			element.data('nivoslider', nivoslider);
		});
	};
	$.fn.nivoSlider.defaults = {
		effect : 'random',
		slices : 15,
		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,
		beforeChange : function() {
		},
		afterChange : function() {
		},
		slideshowEnd : function() {
		},
		lastSlide : function() {
		},
		afterLoad : function() {
		}
	};
	$.fn._reverse = [].reverse;
})(jQuery);