/*
 * jQuery Nivo Slider v1.9
 * 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
 * 
 * April 2010 - controlNavThumbs option added by Jamie Thompson (http://jamiethompson.co.uk)
 * March 2010 - manualAdvance option added by HelloPablo (http://hellopablo.co.uk)
 */

(function($) {

	$.fn.nivoSlider = function(options) {

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

	 return this.each(function() {
	 //Useful variables. Play carefully.
	 var vars = {
	 currentSlide: 0,
	 currentImage: '',
	 totalSlides: 0,
	 randAnim: '',
	 running: false,
	 paused: false,
	 stop:false
	 };
 
	 //Get this slider
	 var slider = $(this);
	 slider.data('nivo:vars', vars);
	 slider.css('position','relative');
	 slider.width('1px');
	 slider.height('1px');
	 slider.addClass('nivoSlider');
 
	 //Find our slider children
	 var kids = slider.children();
	 kids.each(function() {
	 var child = $(this);
	 if(!child.is('img')){
	 if(child.is('a')){
	 child.addClass('nivo-imageLink');
	 }
	 child = child.find('img:first');
	 }
	 //Don't ask
	 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);
	 }
	 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');
 
	 //Add initial slices
	 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' })
	 );
	 }
	 }
 
	 //Create caption
	 slider.append(
	 $('<div class="nivo-caption"><p></p></div>').css({ display:'none', opacity:settings.captionOpacity })
	 );
	 //Process initial  caption
	 if(vars.currentImage.attr('title') != ''){
	 $('.nivo-caption p', slider).html(vars.currentImage.attr('title'));
	 $('.nivo-caption', slider).fadeIn(settings.animSpeed);
	 }
 
	 //In the words of Super Mario "let's a go!"
	 var timer = 0;
	 if(!settings.manualAdvance){
	 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"><span class="inv">Prev</span></a><a class="nivo-nextNav"><span class="inv">Next</span></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');
	 }
	 nivoControl.append('<a class="nivo-control" rel="'+ i +'"><img src="'+ child.attr('src').replace(settings.controlNavThumbsSearch, settings.controlNavThumbsReplace) +'"></a>');
	 } else {
	 nivoControl.append('<a class="nivo-control" rel="'+ i +'">'+ i +'</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);
	 });
	 });
 
	 function nivoRun(slider, kids, settings, nudge){
	 //Get our vars
	 var vars = slider.data('nivo:vars');
	 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++;
	 if(vars.currentSlide == vars.totalSlides){ 
	 vars.currentSlide = 0;
	 //Trigger the slideshowEnd callback
	 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 acitve links
	 if(settings.controlNav){
	 $('.nivo-controlNav a', slider).removeClass('active');
	 $('.nivo-controlNav a:eq('+ vars.currentSlide +')', slider).addClass('active');
	 }
 
	 //Process caption
	 if(vars.currentImage.attr('title') != ''){
	 if($('.nivo-caption', slider).css('display') == 'block'){
	 $('.nivo-caption p', slider).fadeOut(settings.animSpeed, function(){
	 $(this).html(vars.currentImage.attr('title'));
	 $(this).fadeIn(settings.animSpeed);
	 });
	 } else {
	 $('.nivo-caption p', slider).html(vars.currentImage.attr('title'));
	 }
	 $('.nivo-caption', slider).fadeIn(settings.animSpeed);
	 } else {
	 $('.nivo-caption', slider).fadeOut(settings.animSpeed);
	 }
 
	 //Set new slice backgrounds
	 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';
	 }
 
	 //Run effects
	 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++;
	 });
	 }
	 }
	};
 
	//Default settings
	$.fn.nivoSlider.defaults = {
	 effect:'random',
	 slices:15,
	 animSpeed:1000,
	 pauseTime:10000,
	 startSlide:0,
	 directionNav:true,
	 directionNavHide:true,
	 controlNav:true,
	 controlNavThumbs:false,
	 controlNavThumbsSearch: '.jpg',
	 controlNavThumbsReplace: '_thumb.jpg',
	 keyboardNav:true,
	 pauseOnHover:true,
	 manualAdvance:false,
	 captionOpacity:0.8,
	 beforeChange: function(){},
	 afterChange: function(){},
	 slideshowEnd: function(){}
	};
 
	$.fn.reverse = [].reverse;
 
})(jQuery);