// Drag and share
  
$(function() {
		   
		//cache selector
		var images = $(".box-share img"),
		  title = $("title").text() || document.title;
		
	    //make images draggable
	    images.draggable({
		  //create draggable helper
		  helper: function() {
		    return $("<div>").attr("id", "helper").html("<img src=/images/brookson-b.png>").appendTo("body");
		  },
		  cursor: "pointer",
		  cursorAt: { left: -10, top: 20 },
		  zIndex: 99999,
		  //show overlay and targets
		  start: function() {
		    $("<div>").attr("id", "overlay").css("opacity", 0.7).appendTo("body");
			$("#tip").remove();
			$(this).unbind("mouseenter");
			$("#targets").css("left", ($("body").width() / 2) - $("#targets").width() / 2).slideDown();
		  },
		  //remove targets and overlay
		  stop: function() {
		    $("#targets").slideUp();
			$(".share", "#targets").remove();
		    $("#overlay").remove();
			$(this).bind("mouseenter", createTip);
		  }
		});
		
		//make targets droppable
		$("#targets li").droppable({
		  tolerance: "pointer",
		  //show info when over target
		  over: function() {
		    $(".share", "#targets").remove();
		    $("<span>").addClass("share").text("Share on " + $(this).attr("id")).addClass("active").appendTo($(this)).fadeIn();
		  },
		  drop: function() {
		    var id = $(this).attr("id"),
			  currentUrl = window.location.href,
			  baseUrl = $(this).find("a").attr("href");

			if (id.indexOf("twitter") != -1) {
			    window.location.href = encodeURI(baseUrl + "/home?status=" + title + ": " + currentUrl);
			} else if (id.indexOf("linkedin") != -1) {
			    window.location.href = encodeURI(baseUrl + "/shareArticle?mini=true&url=" + currentUrl + "&title=" + title + "&source=Brookson");
			} else if (id.indexOf("facebook") != -1) {
			  window.location.href = encodeURI(baseUrl + "/sharer.php?u=" + currentUrl + "&t=" + title);
			}
		  }		  
		});
	  
	    var createTip = function(e) {
		  //create tool tip if it doesn't exist
		  ($("#tip").length === 0) ? $("<div>").html("<span>Drag this image to share the page<\/span><span class='arrow'><\/span>").attr("id", "tip").css({ left:e.pageX + 30, top:e.pageY - 16 }).appendTo("body").fadeIn(2000) : null;
		};
		
		images.bind("mouseenter", createTip);
		
		images.mousemove(function(e) {
		
		  //move tooltip
          $("#tip").css({ left:e.pageX + 30, top:e.pageY - 16 });
        });
	  
	    images.mouseleave(function() {
		
		  //remove tooltip
		  $("#tip").remove();
	    });

$(window)
		.scroll(
			function () {
				$('.box-share').stop().animate({ top: (window.pageYOffset + 201) + 'px' }, 3000, function () { });
			}
		);

	// Accordion 
	if ($( "#faq-accordion" ).length){
	$( "#faq-accordion" ).accordion({autoHeight:false, active: false, collapsible: true });
	}

//init page
$(function(){
	//initClearInputs();
	initAutoscalingMenu();
	initScrollGallery();
	initOpenClose();
	initAccordion();
	initTabs();
});

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

//init autoscaling menu
function initAutoscalingMenu(){
	initAutoScalingNav({
		menuId: "nav",
		minPaddings: 30
	});
}

// tabs init
function initTabs() {
	$('ul.tab-set').jqueryTabs({
		addToParent:true,
		holdHeight:false,
		activeClass:'active',
		tabLinks:'a.tab',
		fadeSpeed:0
	})
}

//init scroll gallery
function initScrollGallery(){
	$('.block-gallery').scrollGallery({
		pagerLinks:'.switcher li',
		autoRotation:true,
		switchTime:11000
	})
}

// accordion function
function initAccordion() {
	$('ul.accordion').multiAccordion({
		activeClass:'active',
		opener:'>a.opener',
		slider:'>div.slide',
		collapsible:false,
		slideSpeed: 500,
		event:'click'
	});
}

// open-close init
function initOpenClose() {
	$('div.open-close').OpenClose({
		activeClass:'popup-active',
		opener:'>a.open',
		slider:'>div.slide-box',
		slideSpeed: 400
	});
}

// open-close plugin
jQuery.fn.OpenClose = function(_options){
	// default options
	var _options = jQuery.extend({
		activeClass:'active',
		opener:'.opener',
		slider:'.slide',
		slideSpeed: 400,
		animStart:false,
		animEnd:false,
		event:'click'
	},_options);

	return this.each(function(){
		// options
		var _holder = jQuery(this);
		var _slideSpeed = _options.slideSpeed;
		var _activeClass = _options.activeClass;
		var _opener = jQuery(_options.opener, _holder);
		var _slider = jQuery(_options.slider, _holder);
		var _animStart = _options.animStart;
		var _animEnd = _options.animEnd;
		var _event = _options.event;
		if(_slider.length) {
			_opener.bind(_event,function(){
				if(!_slider.is(':animated')) {
					if(typeof _animStart === 'function') _animStart();
					if(_holder.hasClass(_activeClass)) {
						_slider.slideUp(_slideSpeed,function(){
							if(typeof _animEnd === 'function') _animEnd();
						});
						_holder.removeClass(_activeClass);
					} else {
						_holder.addClass(_activeClass);
						_slider.slideDown(_slideSpeed,function(){
							if(typeof _animEnd === 'function') _animEnd();
						});
					}
				}
				return false;
			});
			if(_holder.hasClass(_activeClass)) _slider.show();
			else _slider.hide();
		}
	});
}


// multilevel accordion plugin
jQuery.fn.multiAccordion = function(_options){
	// default options
	var _options = jQuery.extend({
		activeClass:'active',
		opener:'.opener',
		slider:'.slide',
		slideSpeed: 400,
		collapsible:true,
		event:'click'
	},_options);

	return this.each(function(){
		// options
		var _event = _options.event;
		var _accordion = jQuery(this);
		var _items = _accordion.find(':has('+_options.slider+')');

		_items.each(function(){
			var _holder = $(this);
			var _opener = _holder.find(_options.opener);
			var _slider = _holder.find(_options.slider);
			_opener.bind(_event, function(){
				if(!_slider.is(':animated')) {
					if(_holder.hasClass(_options.activeClass)) {
						if(_options.collapsible) {
							_slider.slideUp(_options.slideSpeed, function(){
								_holder.removeClass(_options.activeClass);
							});
						}
					} else {
						var _levelItems = _holder.siblings('.'+_options.activeClass);
						_holder.addClass(_options.activeClass);
						_slider.slideDown(_options.slideSpeed);

						// collapse others
						_levelItems.find(_options.slider).slideUp(_options.slideSpeed, function(){
							_levelItems.removeClass(_options.activeClass);
						})
					}
				}
				return false;
			});
			if(_holder.hasClass(_options.activeClass)) _slider.show(); else _slider.hide();
		});
	});
}



// scrolling gallery plugin
jQuery.fn.scrollGallery = function(_options){
	var _options = jQuery.extend({
		sliderHolder: '>div',
		slider:'>ul',
		slides: '>li',
		pagerLinks:'div.pager a',
		btnPrev:'a.link-prev',
		btnNext:'a.link-next',
		activeClass:'active',
		disabledClass:'disabled',
		generatePagination:'div.pg-holder',
		curNum:'em.scur-num',
		allNum:'em.sall-num',
		circleSlide:true,
		pauseClass:'gallery-paused',
		pauseButton:'none',
		pauseOnHover:true,
		autoRotation:false,
		stopAfterClick:false,
		switchTime:5000,
		duration:650,
		easing:'swing',
		event:'click',
		splitCount:false,
		afterInit:false,
		vertical:false,
		step:false
	},_options);

	return this.each(function(){
		// gallery options
		var _this = jQuery(this);
		var _sliderHolder = jQuery(_options.sliderHolder, _this);
		var _slider = jQuery(_options.slider, _sliderHolder);
		var _slides = jQuery(_options.slides, _slider);
		var _btnPrev = jQuery(_options.btnPrev, _this);
		var _btnNext = jQuery(_options.btnNext, _this);
		var _pagerLinks = jQuery(_options.pagerLinks, _this);
		var _generatePagination = jQuery(_options.generatePagination, _this);
		var _curNum = jQuery(_options.curNum, _this);
		var _allNum = jQuery(_options.allNum, _this);
		var _pauseButton = jQuery(_options.pauseButton, _this);
		var _pauseOnHover = _options.pauseOnHover;
		var _pauseClass = _options.pauseClass;
		var _autoRotation = _options.autoRotation;
		var _activeClass = _options.activeClass;
		var _disabledClass = _options.disabledClass;
		var _easing = _options.easing;
		var _duration = _options.duration;
		var _switchTime = _options.switchTime;
		var _controlEvent = _options.event;
		var _step = _options.step;
		var _vertical = _options.vertical;
		var _circleSlide = _options.circleSlide;
		var _stopAfterClick = _options.stopAfterClick;
		var _afterInit = _options.afterInit;
		var _splitCount = _options.splitCount;

		// gallery init
		if(!_slides.length) return;

		if(_splitCount) {
			var curStep = 0;
			var newSlide = $('<slide>').addClass('split-slide');
			_slides.each(function(){
				newSlide.append(this);
				curStep++;
				if(curStep > _splitCount-1) {
					curStep = 0;
					_slider.append(newSlide);
					newSlide = $('<slide>').addClass('split-slide');
				}
			});
			if(curStep) _slider.append(newSlide);
			_slides = _slider.children();
		}

		var _currentStep = 0;
		var _sumWidth = 0;
		var _sumHeight = 0;
		var _hover = false;
		var _stepWidth;
		var _stepHeight;
		var _stepCount;
		var _offset;
		var _timer;

		_slides.each(function(){
			_sumWidth+=$(this).outerWidth(true);
			_sumHeight+=$(this).outerHeight(true);
		});

		// calculate gallery offset
		function recalcOffsets() {
			if(_vertical) {
				if(_step) {
					_stepHeight = _slides.eq(_currentStep).outerHeight(true);
					_stepCount = Math.ceil((_sumHeight-_sliderHolder.height())/_stepHeight)+1;
					_offset = -_stepHeight*_currentStep;
				} else {
					_stepHeight = _sliderHolder.height();
					_stepCount = Math.ceil(_sumHeight/_stepHeight);
					_offset = -_stepHeight*_currentStep;
					if(_offset < _stepHeight-_sumHeight) _offset = _stepHeight-_sumHeight;
				}
			} else {
				if(_step) {
					_stepWidth = _slides.eq(_currentStep).outerWidth(true)*_step;
					_stepCount = Math.ceil((_sumWidth-_sliderHolder.width())/_stepWidth)+1;
					_offset = -_stepWidth*_currentStep;
					if(_offset < _sliderHolder.width()-_sumWidth) _offset = _sliderHolder.width()-_sumWidth;
				} else {
					_stepWidth = _sliderHolder.width();
					_stepCount = Math.ceil(_sumWidth/_stepWidth);
					_offset = -_stepWidth*_currentStep;
					if(_offset < _stepWidth-_sumWidth) _offset = _stepWidth-_sumWidth;
				}
			}
		}

		// gallery control
		if(_btnPrev.length) {
			_btnPrev.bind(_controlEvent,function(){
				if(_stopAfterClick) stopAutoSlide();
				prevSlide();
				return false;
			});
		}
		if(_btnNext.length) {
			_btnNext.bind(_controlEvent,function(){
				if(_stopAfterClick) stopAutoSlide();
				nextSlide();
				return false;
			});
		}
		if(_generatePagination.length) {
			_generatePagination.empty();
			recalcOffsets();
			var _list = $('<ul />');
			for(var i=0; i<_stepCount; i++) $('<li><a href="#">'+(i+1)+'</a></li>').appendTo(_list);
			_list.appendTo(_generatePagination);
			_pagerLinks = _list.children();
		}
		if(_pagerLinks.length) {
			_pagerLinks.each(function(_ind){
				jQuery(this).bind(_controlEvent,function(){
					if(_currentStep != _ind) {
						if(_stopAfterClick) stopAutoSlide();
						_currentStep = _ind;
						switchSlide();
					}
					return false;
				});
			});
		}

		// gallery animation
		function prevSlide() {
			recalcOffsets();
			if(_currentStep > 0) _currentStep--;
			else if(_circleSlide) _currentStep = _stepCount-1;
			switchSlide();
		}
		function nextSlide() {
			recalcOffsets();
			if(_currentStep < _stepCount-1) _currentStep++;
			else if(_circleSlide) _currentStep = 0;
			switchSlide();
		}
		function refreshStatus() {
			if(_pagerLinks.length) _pagerLinks.removeClass(_activeClass).eq(_currentStep).addClass(_activeClass);
			if(!_circleSlide) {
				_btnPrev.removeClass(_disabledClass);
				_btnNext.removeClass(_disabledClass);
				if(_currentStep == 0) _btnPrev.addClass(_disabledClass);
				if(_currentStep == _stepCount-1) _btnNext.addClass(_disabledClass);
			}
			if(_curNum.length) _curNum.text(_currentStep+1);
			if(_allNum.length) _allNum.text(_stepCount);
		}
		function switchSlide() {
			recalcOffsets();
			if(_vertical) _slider.animate({marginTop:_offset},{duration:_duration,queue:false,easing:_easing});
			else _slider.animate({marginLeft:_offset},{duration:_duration,queue:false,easing:_easing});
			refreshStatus();
			autoSlide();
		}

		// autoslide function
		function stopAutoSlide() {
			if(_timer) clearTimeout(_timer);
			_autoRotation = false;
		}
		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();
			});
		}
		recalcOffsets();
		refreshStatus();
		autoSlide();

		// pause buttton
		if(_pauseButton.length) {
			_pauseButton.click(function(){
				if(_this.hasClass(_pauseClass)) {
					_this.removeClass(_pauseClass);
					_autoRotation = true;
					autoSlide();
				} else {
					_this.addClass(_pauseClass);
					stopAutoSlide();
				}
				return false;
			});
		}
		jQuery(window).focus(function(){
			autoSlide();
		}).blur(function(){
			clearTimeout(_timer);
		});

		if(_afterInit && typeof _afterInit === 'function') _afterInit(_this, _slides);
	});
}

// jquery tabs plugin
jQuery.fn.jqueryTabs = function(_options){
	// default options
	var _options = jQuery.extend({
		addToParent:false,
		holdHeight:false,
		activeClass:'active',
		tabLinks:'a.tab',
		fadeSpeed:300,
		event:'click'
	},_options);

	return this.each(function(){
		var _holder = jQuery(this);
		var _fadeSpeed = _options.fadeSpeed;
		var _activeClass = _options.activeClass;
		var _addToParent = _options.addToParent;
		var _holdHeight = _options.holdHeight;
		var _tabLinks = jQuery(_options.tabLinks, _holder);
		var _tabset = (_addToParent ? _tabLinks.parent() : _tabLinks);
		var _event = _options.event;
		var _animating = false;

		// tabs init
		_tabLinks.each(function(){
			var _tmpLink = jQuery(this);
			var _tmpTab = jQuery(_tmpLink.attr('href'));
			var _classItem = (_addToParent ? _tmpLink.parent() : _tmpLink);
			if(_tmpTab.length) {
				if(_classItem.hasClass(_activeClass)) _tmpTab.show();
				else _tmpTab.hide();
			}
		});

		// tab switcher
		function switchTab(_switcher) {
			if(!_animating) {
				var _link = jQuery(_switcher);
				var _newItem = (_addToParent ? _link.parent() : _link);
				var _newTab = jQuery(_link.attr('href'));
				if(_newItem.hasClass(_activeClass)) return;

				var _oldItem = jQuery(_addToParent ? _tabset : _tabLinks).filter('.'+_activeClass);
				var _oldTab = jQuery(jQuery(_addToParent ? _oldItem.children('a') : _oldItem).attr('href'));
				if(_newTab.length) {
					_animating = true;
					if(_oldItem.length) {
						_newItem.addClass(_activeClass);
						_oldItem.removeClass(_activeClass);

						var _parent = _oldTab.parent();
						if(_holdHeight) _parent.css({height:_parent.height()});

						_oldTab.fadeOut(_fadeSpeed,function(){
							_newTab.fadeIn(_fadeSpeed,function(){
								_animating = false;
							});
							if(_holdHeight) _parent.css({height:'auto'});
						});
					} else {
						_newItem.addClass(_activeClass);
						_newTab.fadeIn(_fadeSpeed,function(){
							_animating = false;
						});
					}
				}
			}
		}

		// control
		_tabLinks.each(function(){
			jQuery(this).bind(_event,function(){
				switchTab(this);
				return false;
			});
		});
	});
}

//clear form
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.filter) o.filter = "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)) {
				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)) {
				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";
	}
}

// autoscaling navigation
function initAutoScalingNav(o) {
	if (!o.menuId) o.menuId = "nav";
	if (!o.tag) o.tag = "a";
	if (!o.spacing) o.spacing = 0;
	if (!o.constant) o.constant = 0;
	if (!o.minPaddings) o.minPaddings = 0;
	if (!o.liHovering) o.liHovering = false;
	if (!o.sideClasses) o.sideClasses = false;
	if (!o.equalLinks) o.equalLinks = false;
	if (!o.flexible) o.flexible = false;
	var nav = document.getElementById(o.menuId);
	if(nav) {
		nav.className += " scaling-active";
		var lis = nav.getElementsByTagName("li");
		var asFl = [];
		var lisFl = [];
		var width = 0;
		for (var i=0, j=0; i<lis.length; i++) {
			if(lis[i].parentNode == nav) {
				var t = lis[i].getElementsByTagName(o.tag).item(0);
				asFl.push(t);
				asFl[j++].width = t.offsetWidth;
				lisFl.push(lis[i]);
				if(width < t.offsetWidth) width = t.offsetWidth;
			}
			if(o.liHovering) {
				lis[i].onmouseover = function() {
					this.className += " hover";
				}
				lis[i].onmouseout = function() {
					this.className = this.className.replace("hover", "");
				}
			}
		}
		var menuWidth = nav.clientWidth - asFl.length*o.spacing - o.constant;
		if(o.equalLinks && width * asFl.length < menuWidth) {
			for (var i=0; i<asFl.length; i++) {
				asFl[i].width = width;
			}
		}
		width = getItemsWidth(asFl);
		if(width < menuWidth) {
			var version = navigator.userAgent.toLowerCase();
			for (var i=0; getItemsWidth(asFl) < menuWidth; i++) {
				asFl[i].width++;
				if(!o.flexible) {
					asFl[i].style.width = asFl[i].width + "px";
				}
				if(i >= asFl.length-1) i=-1;
			}
			if(o.flexible) {
				for (var i=0; i<asFl.length; i++) {
					width = (asFl[i].width - o.spacing - o.constant/asFl.length)/menuWidth*100;
					if(i != asFl.length-1) {
						lisFl[i].style.width = width + "%";
					}
					else {
						if(navigator.appName.indexOf("Microsoft Internet Explorer") == -1 || version.indexOf("msie 8") != -1 || version.indexOf("msie 9") != -1)
							lisFl[i].style.width = width + "%";
					}
				}
			}
		}
		else if(o.minPaddings > 0) {
			for (var i=0; i<asFl.length; i++) {
				asFl[i].style.paddingLeft = o.minPaddings + "px";
				asFl[i].style.paddingRight = o.minPaddings + "px";
			}
		}
		if(o.sideClasses) {
			lisFl[0].className += " first-child";
			lisFl[0].getElementsByTagName(o.tag).item(0).className += " first-child-a";
			lisFl[lisFl.length-1].className += " last-child";
			lisFl[lisFl.length-1].getElementsByTagName(o.tag).item(0).className += " last-child-a";
		}
		nav.className += " scaling-ready";
	}
	function getItemsWidth(a) {
		var w = 0;
		for(var q=0; q<a.length; q++) {
			w += a[q].width;
		}
		return w;
	}
}

});