/*

 * jQuery Nivo Slider v2.4

 * 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

 * 

 * 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){

		//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');

        

        //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>')

        );			

        //Process initial  caption

        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);

        }

        

        //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">Prev</a><a class="nivo-nextNav">Next</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);

        });

        

        // Reset slice width before animations run

        var resetSliceWidth = function(slider, settings){

            var slices = $('.nivo-slice', slider);

            var i = 0;

            slices.each(function(){

                var slice = $(this);

                var sliceWidth = Math.round(slider.width()/settings.slices);

                if(i == settings.slices-1){

                    slice.css('width', (slider.width()-(sliceWidth*i)) + 'px');

                } else {

                    slice.css('width', sliceWidth + 'px');

                }

                i++;

            });

        }



        // 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 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') != ''){

                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);

			}

			

			//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','slideInRight','slideInLeft');

				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'){

				var timeBuff = 0;

				var i = 0;

                resetSliceWidth(slider, settings);

				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;

                resetSliceWidth(slider, settings);

				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;

                resetSliceWidth(slider, settings);

				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;

                resetSliceWidth(slider, settings);

				$('.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 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'){

                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'){

                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'); 

                });

            }

		}

        

        // 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);

    };

        

    $.fn.nivoSlider = function(options) {

    

        return this.each(function(){

            var element = $(this);

            // Return early if this element already has a plugin instance

            if (element.data('nivoslider')) return;

            // 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,

		animSpeed: 500,

		pauseTime: 7000,

		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);