//init page
$(function(){
	initGallery();
	initSlideshow();
	initClearInputs();
});

// main page slideshow
function initSlideshow(){
	$('.slideshow').fadeGallery({
		slideElements:'ul > li',
		pauseOnHover:false,
		autoRotation:true,
		switchTime:6000,
		duration:700
	});
}

//init gallery
function initGallery(){
	jQuery('.carousel').gallery({
		duration: 700,
		direction: false,
		circle: false,
		slideElement:4,
		listOfSlides: '.frame > ul > li'
	});
}

//init clear inputs
function initClearInputs(){
	clearFormFields({
		clearInputs: true,
		clearTextareas: true,
		passwordFieldText: false,
		addClassFocus: "focus",
		filterClass: "default"
	});
}

// slideshow plugin
jQuery.fn.fadeGallery = function(_options){
	var _options = jQuery.extend({
		slideElements:'div.slideset > div',
		pagerLinks:'div.pager a',
		btnNext:'a.next',
		btnPrev:'a.prev',
		btnPlayPause:'a.play-pause',
		btnPlay:'a.play',
		btnPause:'a.pause',
		pausedClass:'paused',
		disabledClass: 'disabled',
		playClass:'playing',
		activeClass:'active',
		loadingClass:'ajax-loading',
		loadedClass:'slide-loaded',
		dynamicImageLoad:false,
		dynamicImageLoadAttr:'alt',
		currentNum:false,
		allNum:false,
		startSlide:null,
		noCircle:false,
		pauseOnHover:true,
		autoRotation:false,
		autoHeight:false,
		onBeforeFade:false,
		onAfterFade:false,
		onChange:false,
		disableWhileAnimating:false,
		switchTime:3000,
		duration:650,
		event:'click'
	},_options);

	return this.each(function(){
		// gallery options
		if(this.slideshowInit) return; else this.slideshowInit;
		var _this = jQuery(this);
		var _slides = jQuery(_options.slideElements, _this);
		var _pagerLinks = jQuery(_options.pagerLinks, _this);
		var _btnPrev = jQuery(_options.btnPrev, _this);
		var _btnNext = jQuery(_options.btnNext, _this);
		var _btnPlayPause = jQuery(_options.btnPlayPause, _this);
		var _btnPause = jQuery(_options.btnPause, _this);
		var _btnPlay = jQuery(_options.btnPlay, _this);
		var _pauseOnHover = _options.pauseOnHover;
		var _dynamicImageLoad = _options.dynamicImageLoad;
		var _dynamicImageLoadAttr = _options.dynamicImageLoadAttr;
		var _autoRotation = _options.autoRotation;
		var _activeClass = _options.activeClass;
		var _loadingClass = _options.loadingClass;
		var _loadedClass = _options.loadedClass;
		var _disabledClass = _options.disabledClass;
		var _pausedClass = _options.pausedClass;
		var _playClass = _options.playClass;
		var _autoHeight = _options.autoHeight;
		var _duration = _options.duration;
		var _switchTime = _options.switchTime;
		var _controlEvent = _options.event;
		var _currentNum = (_options.currentNum ? jQuery(_options.currentNum, _this) : false);
		var _allNum = (_options.allNum ? jQuery(_options.allNum, _this) : false);
		var _startSlide = _options.startSlide;
		var _noCycle = _options.noCircle;
		var _onChange = _options.onChange;
		var _onBeforeFade = _options.onBeforeFade;
		var _onAfterFade = _options.onAfterFade;
		var _disableWhileAnimating = _options.disableWhileAnimating;

		// gallery init
		var _anim = false;
		var _hover = false;
		var _prevIndex = 0;
		var _currentIndex = 0;
		var _slideCount = _slides.length;
		var _timer;
		if(_slideCount < 2) return;

		_prevIndex = _slides.index(_slides.filter('.'+_activeClass));
		if(_prevIndex < 0) _prevIndex = _currentIndex = 0;
		else _currentIndex = _prevIndex;
		if(_startSlide != null) {
			if(_startSlide == 'random') _prevIndex = _currentIndex = Math.floor(Math.random()*_slideCount);
			else _prevIndex = _currentIndex = parseInt(_startSlide);
		}
		_slides.hide().eq(_currentIndex).show();
		if(_autoRotation) _this.removeClass(_pausedClass).addClass(_playClass);
		else _this.removeClass(_playClass).addClass(_pausedClass);

		// gallery control
		if(_btnPrev.length) {
			_btnPrev.bind(_controlEvent,function(){
				prevSlide();
				return false;
			});
		}
		if(_btnNext.length) {
			_btnNext.bind(_controlEvent,function(){
				nextSlide();
				return false;
			});
		}
		if(_pagerLinks.length) {
			_pagerLinks.each(function(_ind){
				jQuery(this).bind(_controlEvent,function(){
					if(_currentIndex != _ind) {
						if(_disableWhileAnimating && _anim) return;
						_prevIndex = _currentIndex;
						_currentIndex = _ind;
						switchSlide();
					}
					return false;
				});
			});
		}

		// play pause section
		if(_btnPlayPause.length) {
			_btnPlayPause.bind(_controlEvent,function(){
				if(_this.hasClass(_pausedClass)) {
					_this.removeClass(_pausedClass).addClass(_playClass);
					_autoRotation = true;
					autoSlide();
				} else {
					_autoRotation = false;
					if(_timer) clearTimeout(_timer);
					_this.removeClass(_playClass).addClass(_pausedClass);
				}
				return false;
			});
		}
		if(_btnPlay.length) {
			_btnPlay.bind(_controlEvent,function(){
				_this.removeClass(_pausedClass).addClass(_playClass);
				_autoRotation = true;
				autoSlide();
				return false;
			});
		}
		if(_btnPause.length) {
			_btnPause.bind(_controlEvent,function(){
				_autoRotation = false;
				if(_timer) clearTimeout(_timer);
				_this.removeClass(_playClass).addClass(_pausedClass);
				return false;
			});
		}

		// dynamic image loading (swap from ATTRIBUTE)
		function loadSlide(slide) {
			if(!slide.hasClass(_loadingClass) && !slide.hasClass(_loadedClass)) {
				var images = slide.find(_dynamicImageLoad) // pass selector here
				var imagesCount = images.length;
				if(imagesCount) {
					slide.addClass(_loadingClass);
					images.each(function(){
						var img = this;
						img.onload = function(){
							img.loaded = true;
							img.onload = null;
							setTimeout(reCalc,_duration);
						}
						img.setAttribute('src', img.getAttribute(_dynamicImageLoadAttr));
						img.setAttribute(_dynamicImageLoadAttr,'');
					}).css({opacity:0});

					function reCalc() {
						var cnt = 0;
						images.each(function(){
							if(this.loaded) cnt++;
						});
						if(cnt == imagesCount) {
							slide.removeClass(_loadingClass);
							images.animate({opacity:1},{duration:_duration,complete:function(){
								if(jQuery.browser.msie && jQuery.browser.version < 9) jQuery(this).css({opacity:'auto'})
							}});
							slide.addClass(_loadedClass)
						}
					}
				}
			}
		}

		// gallery animation
		function prevSlide() {
			if(_disableWhileAnimating && _anim) return;
			_prevIndex = _currentIndex;
			if(_currentIndex > 0) _currentIndex--;
			else {
				if(_noCycle) return;
				else _currentIndex = _slideCount-1;
			}
			switchSlide();
		}
		function nextSlide() {
			if(_disableWhileAnimating && _anim) return;
			_prevIndex = _currentIndex;
			if(_currentIndex < _slideCount-1) _currentIndex++;
			else {
				if(_noCycle) return;
				else _currentIndex = 0;
			}
			switchSlide();
		}
		function refreshStatus() {
			if(_dynamicImageLoad) loadSlide(_slides.eq(_currentIndex));
			if(_pagerLinks.length) _pagerLinks.removeClass(_activeClass).eq(_currentIndex).addClass(_activeClass);
			if(_currentNum) _currentNum.text(_currentIndex+1);
			if(_allNum) _allNum.text(_slideCount);
			_slides.eq(_prevIndex).removeClass(_activeClass);
			_slides.eq(_currentIndex).addClass(_activeClass);
			if(_noCycle) {
				if(_btnPrev.length) {
					if(_currentIndex == 0) _btnPrev.addClass(_disabledClass);
					else _btnPrev.removeClass(_disabledClass);
				}
				if(_btnNext.length) {
					if(_currentIndex == _slideCount-1) _btnNext.addClass(_disabledClass);
					else _btnNext.removeClass(_disabledClass);
				}
			}
			if(typeof _onChange === 'function') {
				_onChange(_this, _slides, _prevIndex, _currentIndex);
			}
		}
		function switchSlide() {
			_anim = true;
			if(typeof _onBeforeFade === 'function') _onBeforeFade(_this, _slides, _prevIndex, _currentIndex);
			/* if($.browser.msie && $.browser.version < 9){
				_slides.eq(_prevIndex).hide();
				_slides.eq(_currentIndex).show();
			}else{ */
				_slides.eq(_prevIndex).stop().animate({opacity:0}, {queue:false, duration:_duration, complete: function(){
					$(this).css({opacity:1, display: 'none'})
					_anim = false;
				}});
				_slides.eq(_currentIndex).css({opacity:0, display: 'block'}).stop().animate({opacity:1}, {queue:false, duration:_duration, complete: function(){
					if(typeof _onAfterFade === 'function') _onAfterFade(_this, _slides, _prevIndex, _currentIndex);
				}});
			/* } */
			if(_autoHeight) _slides.eq(_currentIndex).parent().animate({height:_slides.eq(_currentIndex).outerHeight(true)},{duration:_duration,queue:false});
			refreshStatus();
			autoSlide();
		}

		// autoslide function
		function autoSlide() {
			if(!_autoRotation || _hover) return;
			if(_timer) clearTimeout(_timer);
			_timer = setTimeout(nextSlide,_switchTime+_duration);
		}
		
		if(_pauseOnHover) {
			_this.hover(function(){
				_hover = true;
				if(_timer) clearTimeout(_timer);
			},function(){
				_hover = false;
				autoSlide();
			});
		}
		refreshStatus();
		autoSlide();
	});
}

//gallery plugin
;(function($) {
	$.fn.gallery = function(options) {
		var args = Array.prototype.slice.call(arguments);
		args.shift();
		this.each(function(){
			if(this.galControl && typeof options === 'string') {
				if(typeof this.galControl[options] === 'function') {
					this.galControl[options].apply(this.galControl, args);
				}
			} else {
				this.galControl = new Gallery(this, options);
			}
		});
		return this;
	};
	function Gallery(context, options) { this.init(context, options); };
	Gallery.prototype = {
		options:{},
		init: function (context, options){
			this.options = $.extend({
				duration: 700,
				slideElement:1,
				autoRotation: false,
				effect: false,
				listOfSlides: '.list > li',
				switcher: false,
				autoSwitcher: false,
				disableBtn: false,
				nextBtn: 'a.link-next, a.btn-next, a.next',
				prevBtn: 'a.link-prev, a.btn-prev, a.prev',
				circle: true,
				clone: false,
				direction: false,
				event: 'click'
			}, options || {});
			var self = this;
			this.context = $(context);
			this.els = this.context.find(this.options.listOfSlides);
			this.list = this.els.parent();
			this.count = this.els.length;
			this.autoRotation = this.options.autoRotation;
			this.direction = this.options.direction;
			this.duration = this.options.duration;
			if (this.options.clone) {
				this.list.append(this.els.clone());
				this.list.prepend(this.els.clone());
				this.els = this.context.find(this.options.listOfSlides);
			}
			this.wrap = this.list.parent();
			if (this.options.nextBtn) this.nextBtn = this.context.find(this.options.nextBtn);
			if (this.options.prevBtn) this.prevBtn = this.context.find(this.options.prevBtn);

			this.calcParams(this);
			
			if (this.options.autoSwitcher) {
				this.switcherHolder = this.context.find(this.options.switcher).empty();
				this.switchPattern = $('<ul class="'+ (this.options.autoSwitcher == true ? '' : this.options.autoSwitcher) +'"></ul>');
				for (var i=0;i<this.max+1;i++){
					$('<li><a href="#">'+i+'</a></li>').appendTo(this.switchPattern);
				}
				this.switchPattern.appendTo(this.switcherHolder);
				this.switcher = this.context.find(this.options.switcher).find('li');
				this.active = 0;
			} else {
				if (this.options.switcher) {
					this.switcher = this.context.find(this.options.switcher);
					this.active = this.switcher.index(this.switcher.filter('.active:eq(0)'));
				}
				else this.active = this.els.index(this.els.filter('.active:eq(0)'));
			}
			if (this.active < 0) this.active = 0;
			this.last = this.active;
			if (this.options.switcher) this.switcher.removeClass('active').eq(this.active).addClass('active');
			if (this.options.clone) this.active += this.count;
			
			if (this.options.effect) this.els.css({opacity: 0}).removeClass('active').eq(this.active).addClass('active').css({opacity: 1}).css('opacity', 'auto');
			else {
				if (this.direction) this.list.css({marginTop: -(this.mas[this.active])});
				else this.list.css({marginLeft: -(this.mas[this.active])});
			}
			
			
			if (this.options.nextBtn) this.initEvent(this, this.nextBtn,true);
			if (this.options.prevBtn) this.initEvent(this, this.prevBtn,false);
			
			this.initWindow(this,$(window));
			
			if (this.autoRotation) this.runTimer(this);
			
			if (this.options.switcher) this.initEventSwitcher(this, this.switcher);
			if (this.options.disableBtn && !this.options.circle && !this.options.clone) this.disableControls();
		},
		calcParams: function(self){
			this.mas = [];
			this.sum = 0;
			this.max = this.count-1;
			this.width = 0;
			if (!this.options.effect) {
				this.els.each(function(){self.mas.push(self.width);self.width += self.direction?$(this).outerHeight(true):$(this).outerWidth(true);self.sum+=self.direction?$(this).outerHeight(true):$(this).outerWidth(true);});
				this.finish = this.direction?this.sum-this.wrap.outerHeight():this.sum-this.wrap.outerWidth();
				for (var i=0;i<this.count;i++){
					if (this.mas[i]>=this.finish) {
						this.max = i;
						break;
					}
				}
			}
		},
		changeSettings: function(set,val){
			this[set] = val;
		},
		fadeElement: function(){
			this.els.eq(this.last).animate({opacity:0}, {queue:false, duration: this.duration});
			this.els.removeClass('active').eq(this.active).addClass('active').animate({
				opacity:1
			}, {queue:false, duration: this.duration, complete: function(){
				$(this).css('opacity','auto');
			}});
			if (this.options.switcher) this.switcher.removeClass('active').eq(this.active).addClass('active');
			this.last = this.active;
		},
		scrollElement: function(f){
			if (this.direction) this.list.animate({marginTop: f ? -this.finish : -(this.mas[this.active])}, {queue:false, duration: this.duration});
			else this.list.animate({marginLeft: f ? -this.finish : -(this.mas[this.active])}, {queue:false, duration: this.duration});
			if (this.options.switcher) this.switcher.removeClass('active').eq(this.options.clone ? this.active < this.count ? this.active/this.options.slideElement : this.active >= this.count*2 ? (this.active - this.count*2)/this.options.slideElement : (this.active - this.count)/this.options.slideElement : this.active/this.options.slideElement).addClass('active');
		},
		runTimer: function($this){
			if($this._t) clearTimeout($this._t);
			$this._t = setInterval(function(){
				$this.nextStep();
			}, this.autoRotation);
		},
		initEventSwitcher: function($this, el){
			el.bind($this.options.event, function(){
				if (!$(this).hasClass('active')){
					$this.active = $this.switcher.index($(this)) * $this.options.slideElement;
					if ($this.options.clone) $this.active += $this.count;
					$this.initMove();
				}
				return false;
			});
		},
		initEvent: function($this, addEventEl, dir){
			addEventEl.bind($this.options.event, function(){
				if (dir) $this.nextStep();
				else $this.prevStep();
				if($this._t) clearTimeout($this._t);
				if ($this.autoRotation) $this.runTimer($this);
				return false;
			});
		},
		disableControls: function(){
			this.prevBtn.removeClass(this.options.disableBtn);
			this.nextBtn.removeClass(this.options.disableBtn);
			if (this.active>=this.max) this.nextBtn.addClass(this.options.disableBtn);
			if (this.active<=0) this.prevBtn.addClass(this.options.disableBtn);
		},
		initMove: function(){
			var f = false;
			if (this.active >= this.max && !this.options.clone) {
				f = true;
				this.active = this.max;
			}
			if(this._t) clearTimeout(this._t);
			if (!this.options.effect) this.scrollElement(f);
			else this.fadeElement();
			if (this.autoRotation) this.runTimer(this);
			if (this.options.disableBtn && !this.options.circle && !this.options.clone) this.disableControls();
		},
		nextStep:function(){
			var f = false;
			this.active = this.active + this.options.slideElement;
			if (this.options.disableBtn && !this.options.circle && !this.options.clone) this.disableControls();
			if (this.options.clone){
				if (this.active > this.count*2) {
					if (this.direction) this.list.css({marginTop:-this.mas[this.count]});
					else this.list.css({marginLeft:-this.mas[this.count]});
					this.active = this.count+this.options.slideElement;
				}
			} else {
				if (this.active >= this.max) {
					if (this.options.circle) {
						if (this.active > this.max) this.active = 0;
						else {
							this.active = this.max;
							f = true
						}
					}
					else {
						this.active = this.max;
						f = true;
					}
				}
			}
			if (!this.options.effect) this.scrollElement(f);
			else this.fadeElement();
		},
		prevStep: function(){
			var f = false;
			this.active = this.active - this.options.slideElement;
			if (this.options.disableBtn && !this.options.circle && !this.options.clone) this.disableControls();
			if (this.options.clone){
				if (this.active < 0) {
					if (this.direction) this.list.css({marginTop:-this.mas[this.count]});
					else this.list.css({marginLeft:-this.mas[this.count]});
					this.active = this.count-1;
				}
			} else {
				if (this.active < 0) {
					if (this.options.circle) {
						this.active = this.max;
						f = true;
					}
					else this.active = 0;
				}
			}
			if (!this.options.effect) this.scrollElement(f);
			else this.fadeElement();
		},
		initWindow: function($this,$window){
			$window.focus($.proxy(this.play,this));
			$window.blur($.proxy(this.stop,this));
		},
		stop: function(){
			if (this._t) clearTimeout(this._t);
		},
		play: function(){
			if (this._t) clearTimeout(this._t);
			if (this.autoRotation) this.runTimer(this);
		}
	}
}(jQuery));

//clear form fields module
function clearFormFields(o){
	if (o.clearInputs == null) o.clearInputs = true;
	if (o.clearTextareas == null) o.clearTextareas = true;
	if (o.passwordFieldText == null) o.passwordFieldText = false;
	if (o.addClassFocus == null) o.addClassFocus = false;
	if (!o.filterClass) o.filterClass = "default";
	if(o.clearInputs) {
		var inputs = document.getElementsByTagName("input");
		for (var i = 0; i < inputs.length; i++ ) {
			if((inputs[i].type == "text" || inputs[i].type == "password") && inputs[i].className.indexOf(o.filterClass) == -1) {
				inputs[i].valueHtml = inputs[i].value;
				inputs[i].onfocus = function ()	{
					if(this.valueHtml == this.value) this.value = "";
					if(this.fake) {
						inputsSwap(this, this.previousSibling);
						this.previousSibling.focus();
					}
					if(o.addClassFocus && !this.fake) {
						this.className += " " + o.addClassFocus;
						this.parentNode.className += " parent-" + o.addClassFocus;
					}
				}
				inputs[i].onblur = function () {
					if(this.value == "") {
						this.value = this.valueHtml;
						if(o.passwordFieldText && this.type == "password") inputsSwap(this, this.nextSibling);
					}
					if(o.addClassFocus) {
						this.className = this.className.replace(o.addClassFocus, "");
						this.parentNode.className = this.parentNode.className.replace("parent-"+o.addClassFocus, "");
					}
				}
				if(o.passwordFieldText && inputs[i].type == "password") {
					var fakeInput = document.createElement("input");
					fakeInput.type = "text";
					fakeInput.value = inputs[i].value;
					fakeInput.className = inputs[i].className;
					fakeInput.fake = true;
					inputs[i].parentNode.insertBefore(fakeInput, inputs[i].nextSibling);
					inputsSwap(inputs[i], null);
				}
			}
		}
	}
	if(o.clearTextareas) {
		var textareas = document.getElementsByTagName("textarea");
		for(var i=0; i<textareas.length; i++) {
			if(textareas[i].className.indexOf(o.filterClass) == -1) {
				textareas[i].valueHtml = textareas[i].value;
				textareas[i].onfocus = function() {
					if(this.value == this.valueHtml) this.value = "";
					if(o.addClassFocus) {
						this.className += " " + o.addClassFocus;
						this.parentNode.className += " parent-" + o.addClassFocus;
					}
				}
				textareas[i].onblur = function() {
					if(this.value == "") this.value = this.valueHtml;
					if(o.addClassFocus) {
						this.className = this.className.replace(o.addClassFocus, "");
						this.parentNode.className = this.parentNode.className.replace("parent-"+o.addClassFocus, "");
					}
				}
			}
		}
	}
	function inputsSwap(el, el2) {
		if(el) el.style.display = "none";
		if(el2) el2.style.display = "inline";
	}
}