// page init
jQuery(function(){
	initCufon();
	initNavigation();
	initNavigationBlog();
	initTabs();
	initClear();
	initSlideshow();
})

// cufon init
function initCufon() {
	Cufon.replace('#nav > li > a, #nav-blog > li > a, h1.text-title, .content h1, .sidebar h2, h1.title-area, .tab-holder .tab-box h2, #content h1, #sidebar h2, #sidebar-blog h2, .main-section h1, .aside h2, .slideshow .text-area .title, .side-box strong.text-red', { fontFamily: 'GillSansStd-Light', hover: true });
	Cufon.replace('#nav > li > a, #nav > li > a', { fontFamily: 'GillSansStd-Light'});
	_refresh('#nav > li','#nav > li > a, #nav-blog > li, #nav-blog > li > a');
}
function _refresh (x,y) {jQuery(x).mouseout(function(){setTimeout(function(){Cufon.refresh(y)}, 10);});}

// init tabs when page ready
function initTabs() {
	if(typeof ContentTabs !== 'undefined') {
		ContentTabs.init();
	}
}

// navigation init
function initNavigation() {
	initNav({
		menuId: "nav",
		cleverMode: true,
		flexibility: true,
		dropExistenceClass: "has-drop-down",
		hoverClass: "hover",
		menuHardCodeClass: "menu-hard-code",
		sideClasses: true,
		menuPaddings: 20,
		minWidth: 100
	});
}
function initNavigationBlog() {
	initNav({
		menuId: "nav-blog",
		cleverMode: true,
		flexibility: true,
		dropExistenceClass: "has-drop-down",
		hoverClass: "hover",
		menuHardCodeClass: "menu-hard-code",
		sideClasses: true,
		menuPaddings: 20,
		minWidth: 100
	});
}

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

// slideshow init
function initSlideshow() {
	jQuery('.gallery-holder').fadeGallery({
		slideElements:'.slideshow > li',
		pagerLinks:'.switcher li',
		autoHeight:true,
		autoRotation: true,
		switchTime: 6000,
		duration: 750
	});
}

// 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);
			}
		}
		if(_autoHeight) _slides.eq(_currentIndex).parent().css({height:_slides.eq(_currentIndex).outerHeight(true)});
		function switchSlide() {
			_anim = true;
			if(typeof _onBeforeFade === 'function') _onBeforeFade(_this, _slides, _prevIndex, _currentIndex);
			_slides.eq(_prevIndex).stop(false, true).fadeOut(_duration,function(){
				_anim = false;
			});
			_slides.eq(_currentIndex).stop(false, true).fadeIn(_duration,function(){
				if(typeof _onAfterFade === 'function') _onAfterFade(_this, _slides, _prevIndex, _currentIndex);
			});
			if(_autoHeight) _slides.eq(_currentIndex).parent().stop().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();
	});
}

// navigation function
function initNav(o) {
	if (!o.menuId) o.menuId = "nav";
	if (!o.cleverMode) o.cleverMode = false;
	if (!o.flexibility) o.flexibility = false;
	if (!o.dropExistenceClass) o.dropExistenceClass = false;
	if (!o.hoverClass) o.hoverClass = "hover";
	if (!o.menuHardCodeClass) o.menuHardCodeClass = "menu-hard-code";
	if (!o.sideClasses) o.sideClasses = false;
	if (!o.center) o.center = false;
	if (!o.menuPaddings) o.menuPaddings = 0;
	if (!o.minWidth) o.minWidth = 0;
	if (!o.coeff) o.coeff = 1.7;
	var n = document.getElementById(o.menuId);
	if(n)
	{
		n.className = n.className.replace(o.menuHardCodeClass, "");
		var lfl = [];
		var li = n.getElementsByTagName("li");
		for (var i=0; i<li.length; i++)
		{
			li[i].className += (" " + o.hoverClass);
			var d = li[i].getElementsByTagName("div").item(0);
			if(d)
			{
				if(o.flexibility)
				{
					var a = d.getElementsByTagName("a");
					for (var j=0; j<a.length; j++)
					{
						var w = a[j].parentNode.parentNode.offsetWidth;
						if(w > 0)
						{
							if(typeof(o.minWidth) == "number" && w < o.minWidth)
								w = o.minWidth;
							else if(typeof(o.minWidth) == "string" && li[i].parentNode == n && w < li[i].offsetWidth)
								w = li[i].offsetWidth - 3;
							a[j].style.width = w - o.menuPaddings + "px";
						}
					}
					d.style.width = li[i].getElementsByTagName("div").item(1).clientWidth + "px";
				}
				var t = document.documentElement.clientWidth/o.coeff;
				if(li[i].parentNode != n && (!o.cleverMode || fPX(li[i]) < t))
				{
					d.style.right = "auto";
					d.style.left = li[i].parentNode.offsetWidth + "px";
					d.parentNode.className += " left-side";
				}	
				else if(li[i].parentNode != n && (o.cleverMode || fPX(li[i]) >= t))
				{
					d.style.left = "auto";
					d.style.right = li[i].parentNode.offsetWidth + "px";
					d.parentNode.className += " right-side";
				}
				else if(li[i].parentNode == n && o.cleverMode && fPX(li[i]) >= t)
				{
					li[i].className += " right-side";
				}
				if(li[i].parentNode == n && o.center)
					d.style.left = -li[i].getElementsByTagName("div").item(1).clientWidth/2 + li[i].clientWidth/2 + "px";
			}
			if(o.dropExistenceClass && li[i].getElementsByTagName("ul").length > 0)
			{
				li[i].className += (" " + o.dropExistenceClass);
				li[i].getElementsByTagName("a").item(0).className += (" " + o.dropExistenceClass + "-link");
				li[i].innerHTML += "<em class='pointer'></em>";
			}
			if(li[i].parentNode == n) lfl.push(li[i]);
		}
		if(o.sideClasses)
		{
			lfl[0].className += " first-child";
			lfl[0].getElementsByTagName("a").item(0).className += " first-child-link";
			lfl[lfl.length-1].className += " last-child";
			lfl[lfl.length-1].getElementsByTagName("a").item(0).className += " last-child-link";
		}
		for (var i=0; i<li.length; i++)
		{
			li[i].className = li[i].className.replace(o.hoverClass, "");
			li[i].onmouseover = function()
			{
				this.className += (" " + o.hoverClass);
			}
			li[i].onmouseout = function()
			{
				this.className = this.className.replace(o.hoverClass, "");
			}
		}
	}
	function fPX(a)
	{
		var b = 0;
		while (a.offsetParent) {b += a.offsetLeft; a = a.offsetParent;}
		return b;
	}
}

// clear form fields on focus
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";
	}
}

// content tabs module
ContentTabs = {
	options: {
		classOnParent: false,
		hiddenClass: 'tab-hidden',
		visibleClass: 'tab-active',
		activeClass: 'active',
		tabsets: 'ul.tabset',
		tablinks: 'a.tab',
		event: 'click'
	},
	init: function(){
		this.createStyleSheet();
		this.getTabsets();
		return this;
	},
	createStyleSheet: function() {
		this.tabStyleSheet = document.createElement('style');
		this.tabStyleSheet.setAttribute('type', 'text/css');
		this.tabStyleRule = '.'+this.options.hiddenClass;
		this.tabStyleRule += '{position:absolute !important;left:-9999px !important;top:-9999px !important;display:block !important}';
		document.getElementsByTagName('head')[0].appendChild(this.tabStyleSheet);
		if (this.tabStyleSheet.styleSheet) {
			this.tabStyleSheet.styleSheet.cssText = this.tabStyleRule;
		} else {
			this.tabStyleSheet.appendChild(document.createTextNode(this.tabStyleRule));
		}
	},
	getTabsets: function() {
		this.tabsets = this.queryElements(this.options.tabsets);
		for(var i = 0; i < this.tabsets.length; i++) {
			this.initTabset(this.tabsets[i]);
		}
	},
	initTabset: function(tabset) {
		var tabLinks = this.queryElements(this.options.tablinks, tabset), instance = this;
		for(var i = 0; i < tabLinks.length; i++) {
			tabLinks[i]['on'+this.options.event] = function(){
				instance.switchTab(this, tabLinks);
				return false;
			}
			if(this.hasClass(this.options.classOnParent ? tabLinks[i].parentNode : tabLinks[i], this.options.activeClass)) {
				this.switchTab(tabLinks[i], tabLinks);
			}
		}
	},
	switchTab: function(link, set) {
		for(var i = 0; i < set.length; i++) {
			var curLink = set[i];
			var curTab = document.getElementById(curLink.href.substr(curLink.href.indexOf('#')+1));
			if(curLink === link) {
				this.addClass(this.options.classOnParent ? curLink.parentNode : curLink, this.options.activeClass);
				this.addClass(curTab,this.options.visibleClass);
				this.removeClass(curTab,this.options.hiddenClass);
			} else {
				this.removeClass(this.options.classOnParent ? curLink.parentNode : curLink, this.options.activeClass);
				this.removeClass(curTab,this.options.visibleClass);
				this.addClass(curTab,this.options.hiddenClass);
			}
		}
	},
	queryElements: function(selector, holder) {
		var box = holder || document;
		if(box.querySelectorAll) {
			return box.querySelectorAll(selector);
		} else {
			var res = [], selectorData = selector.split('.');
			var tagName = selectorData[0];
			var set = box.getElementsByTagName(tagName);
			if(selectorData.length > 1) {
				for(var i = 0; i < set.length; i++) {
					if(this.hasClass(set[i], selectorData[1])) res.push(set[i]);
				}
				return res;
			} else {
				return set;
			}
		}
	},
	hasClass: function (obj,cname) {
		return (obj.className ? obj.className.match(new RegExp('(\\s|^)'+cname+'(\\s|$)')) : false);
	},
	addClass: function (obj,cname) {
		if (!this.hasClass(obj,cname)) obj.className += " "+cname;
	},
	removeClass: function (obj,cname) {
		if (this.hasClass(obj,cname)) obj.className=obj.className.replace(new RegExp('(\\s|^)'+cname+'(\\s|$)'),' ');
	}
};