var TYCHO = TYCHO || {};
(function(){
	
	/* basic (ie. fast and dirty) tabber for whole-page navigation (or pages with only one tabber) */
	TYCHO.fadingpagetabber = function(targetElement) {
		if ( $(targetElement).length ) {
			var theBody = $("body"),
                tabs = $(".tab"),
                startingbody = theBody.height(),
                tabheights = [],
                totalheight = 0,
                starttab = window.location.hash || false;

			// work out the height of the entire document, minus the height of all tabs except the tallest one.
			// that is, make the body big enough to accommodate the biggest tab so things don't jump around.
			tabs.each( function() {
				var currentHeight = $(this).height();
				tabheights.push(currentHeight);
				totalheight += currentHeight;
			});
			tabheights.sort(function (a, b) { return b - a; } );
			var headroom = startingbody - (totalheight - tabheights[0]);

            // hide all tabs other than the first or the one specified by a hash link in the url
            // then set the relevant control to .active
            if(!starttab) {
                $(".tab:gt(0)").hide();
                $("a:first", targetElement).addClass("active");
            } else {
                tabs.hide();
                $(starttab).show();
                $(window).scrollTop("0");
                $("a[href$='" + starttab + "']", targetElement).addClass("active");
            }
		
			// reset the body height to accommodate largest tab (stops the page jumping back to top when you scroll down then click)
			theBody.height(headroom);
		
			// click handler
			$("a", targetElement).click( function(c) {
				c.preventDefault();						// no click for you
				$("a.active").removeClass("active");	// remove active
				$(this).addClass("active");				// set new active
				var target = $(this).attr("href");		// get the id from the href
                window.location.hash = target;          // set url hash to current tab
				tabs.hide();						    // re-hide all tabs
				$(target).fadeIn("normal");				// fade in the tab with that id
			});
		}
	}
	/* end basic tabber */
	
	// alt overlay: Pulls out the alt text and makes a visible caption on hover/focus
	TYCHO.altOverlay = function(selector) {
		if ( $(selector).length ) {
			$("a", selector).each( function (){
				theImage = $("img", this);
				caption = theImage.attr("alt");
				imageWidth = theImage.innerWidth();
				$(this).append('<span class="hover-caption hidden">' + caption + '</span>');
				$(".hover-caption", this).width(imageWidth);
			});
			// assign specific add/remove to avoid issues with opera spatial navigation
			$("a", selector).bind("mouseenter focusin", function(e) {
				//console.log(e.type,e.target);
				$(".hover-caption", this).removeClass("hidden");
			});
			$("a", selector).bind("mouseleave focusout", function(e) {
				//console.log(e.type,e.target);
				$(".hover-caption", this).addClass("hidden");
			});
		}
	};

	TYCHO.popup = function(popElement) {
		popElement.click( function() {
			window.open( $(this).attr('href'),this,'width=640,height=545' );
			return false;
		});  
	}

	TYCHO.processLinks = function() {
		var theAs = $("a");
		
		//theAs.filter("[href$='.jpg'], [href$='.JPG'], [href$='.gif'], [href$='.GIF']").each( function(i) {
		//	$(this).lightBox(); // TODO: doing it this way stops the lightbox doing next/prev... 
		//});

		theAs.filter("[href$='.jpg'], [href$='.JPG'], [href$='.gif'], [href$='.GIF']").lightBox();
		
		theAs.filter("[rel='popup']").each( function(i) {
			TYCHO.popup($(this));
		});
	}

	TYCHO.setUpAudioPlayers = function(options) {
		var players = $(options.selector);
		if (players.length) {

			AudioPlayer.setup("http://tycho.com.au/js/swf/player.swf", {  
				width: 290,					// expanded player width
				initialvolume: 100,			// volume to eleven
				transparentpagebg: "yes",	// show page background behind player
				loader: "0000ff",			// make loader track blue
				checkpolicy: "yes",			// check crossdomain policy file (enables display of titles)
				remaining: "yes"			// show time remaining instead of time elapsed
			});  

			players.each( function(i) {

				var playerID = $(this).attr("id"),
                    playerURL = $(this).attr("href") || $(this).attr("src"); // might be a link or an audio element

				// generate an ID if the player doesn't have one
				if (!playerID) {
					var backupID =  "autogeneratedplayer" + i; // not bothering to check if that exists because i know it doesn't
					$(this).attr("id", backupID);
					var playerID = backupID;
				}

				// set up players
				if (playerURL) {
					AudioPlayer.embed(playerID, { "soundFile" : playerURL});
				}

			});
		}
	}

	// navigation with ye olde suckerfishe.
	// need to update to something that's not reliant on hover
	sfHover = function() {
		var sfEls = document.getElementById("nav-list").getElementsByTagName("LI");
		for (var i=0; i<sfEls.length; i++) {
			sfEls[i].onmouseover=function() {
				this.className+=" sfhover";
			}
			sfEls[i].onmouseout=function() {
				this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
			}
		}
	}
	if (window.attachEvent) window.attachEvent("onload", sfHover);


	//TYCHO.navClickPatch = function() {
	//	var topNavs = $("#nav-list > li");
	//	var theClass = "sfhover";
	//	topNavs.click( function(e){
	//		$(this).toggleClass(theClass);
	//		e.preventDefault();
	//	});
	//	topNavs.bind("mouseleave focusout", function(e) {
	//		$(".hover-caption", this).addClass("hidden");
	//	});
	//
	//};

	// REMINDER: update image path during upgrades
	/**
	 * jQuery lightBox plugin
	 * This jQuery plugin was inspired and based on Lightbox 2 by Lokesh Dhakar (http://www.huddletogether.com/projects/lightbox2/)
	 * and adapted to me for use like a plugin from jQuery.
	 * @name jquery-lightbox-0.5.js
	 * @author Leandro Vieira Pinho - http://leandrovieira.com
	 * @version 0.5
	 * @date April 11, 2008
	 * @category jQuery plugin
	 * @copyright (c) 2008 Leandro Vieira Pinho (leandrovieira.com)
	 * @license CC Attribution-No Derivative Works 2.5 Brazil - http://creativecommons.org/licenses/by-nd/2.5/br/deed.en_US
	 * @example Visit http://leandrovieira.com/projects/jquery/lightbox/ for more informations about this jQuery plugin
	 */
	(function($){$.fn.lightBox=function(settings){settings=jQuery.extend({overlayBgColor:'#000',overlayOpacity:0.8,fixedNavigation:false,imageLoading:'http://tycho.com.au/js/images/lightbox-ico-loading.gif',imageBtnPrev:'http://tycho.com.au/js/images/lightbox-btn-prev.gif',imageBtnNext:'http://tycho.com.au/js/images/lightbox-btn-next.gif',imageBtnClose:'http://tycho.com.au/js/images/lightbox-btn-close.gif',imageBlank:'http://tycho.com.au/js/images/lightbox-blank.gif',containerBorderSize:10,containerResizeSpeed:400,txtImage:'Image',txtOf:'of',keyToClose:'c',keyToPrev:'p',keyToNext:'n',imageArray:[],activeImage:0},settings);var jQueryMatchedObj=this;function _initialize(){_start(this,jQueryMatchedObj);return false;}
	function _start(objClicked,jQueryMatchedObj){$('embed, object, select').css({'visibility':'hidden'});_set_interface();settings.imageArray.length=0;settings.activeImage=0;if(jQueryMatchedObj.length==1){settings.imageArray.push(new Array(objClicked.getAttribute('href'),objClicked.getAttribute('title')));}else{for(var i=0;i<jQueryMatchedObj.length;i++){settings.imageArray.push(new Array(jQueryMatchedObj[i].getAttribute('href'),jQueryMatchedObj[i].getAttribute('title')));}}
	while(settings.imageArray[settings.activeImage][0]!=objClicked.getAttribute('href')){settings.activeImage++;}
	_set_image_to_view();}
	function _set_interface(){$('body').append('<div id="jquery-overlay"></div><div id="jquery-lightbox"><div id="lightbox-container-image-box"><div id="lightbox-container-image"><img id="lightbox-image"><div style="" id="lightbox-nav"><a href="#" id="lightbox-nav-btnPrev"></a><a href="#" id="lightbox-nav-btnNext"></a></div><div id="lightbox-loading"><a href="#" id="lightbox-loading-link"><img src="'+settings.imageLoading+'"></a></div></div></div><div id="lightbox-container-image-data-box"><div id="lightbox-container-image-data"><div id="lightbox-image-details"><span id="lightbox-image-details-caption"></span><span id="lightbox-image-details-currentNumber"></span></div><div id="lightbox-secNav"><a href="#" id="lightbox-secNav-btnClose"><img src="'+settings.imageBtnClose+'"></a></div></div></div></div>');var arrPageSizes=___getPageSize();$('#jquery-overlay').css({backgroundColor:settings.overlayBgColor,opacity:settings.overlayOpacity,width:arrPageSizes[0],height:arrPageSizes[1]}).fadeIn();var arrPageScroll=___getPageScroll();$('#jquery-lightbox').css({top:arrPageScroll[1]+(arrPageSizes[3]/10),left:arrPageScroll[0]}).show();$('#jquery-overlay,#jquery-lightbox').click(function(){_finish();});$('#lightbox-loading-link,#lightbox-secNav-btnClose').click(function(){_finish();return false;});$(window).resize(function(){var arrPageSizes=___getPageSize();$('#jquery-overlay').css({width:arrPageSizes[0],height:arrPageSizes[1]});var arrPageScroll=___getPageScroll();$('#jquery-lightbox').css({top:arrPageScroll[1]+(arrPageSizes[3]/10),left:arrPageScroll[0]});});}
	function _set_image_to_view(){$('#lightbox-loading').show();if(settings.fixedNavigation){$('#lightbox-image,#lightbox-container-image-data-box,#lightbox-image-details-currentNumber').hide();}else{$('#lightbox-image,#lightbox-nav,#lightbox-nav-btnPrev,#lightbox-nav-btnNext,#lightbox-container-image-data-box,#lightbox-image-details-currentNumber').hide();}
	var objImagePreloader=new Image();objImagePreloader.onload=function(){$('#lightbox-image').attr('src',settings.imageArray[settings.activeImage][0]);_resize_container_image_box(objImagePreloader.width,objImagePreloader.height);objImagePreloader.onload=function(){};};objImagePreloader.src=settings.imageArray[settings.activeImage][0];};function _resize_container_image_box(intImageWidth,intImageHeight){var intCurrentWidth=$('#lightbox-container-image-box').width();var intCurrentHeight=$('#lightbox-container-image-box').height();var intWidth=(intImageWidth+(settings.containerBorderSize*2));var intHeight=(intImageHeight+(settings.containerBorderSize*2));var intDiffW=intCurrentWidth-intWidth;var intDiffH=intCurrentHeight-intHeight;$('#lightbox-container-image-box').animate({width:intWidth,height:intHeight},settings.containerResizeSpeed,function(){_show_image();});if((intDiffW==0)&&(intDiffH==0)){if($.browser.msie){___pause(250);}else{___pause(100);}}
	$('#lightbox-container-image-data-box').css({width:intImageWidth});$('#lightbox-nav-btnPrev,#lightbox-nav-btnNext').css({height:intImageHeight+(settings.containerBorderSize*2)});};function _show_image(){$('#lightbox-loading').hide();$('#lightbox-image').fadeIn(function(){_show_image_data();_set_navigation();});_preload_neighbor_images();};function _show_image_data(){$('#lightbox-container-image-data-box').slideDown('fast');$('#lightbox-image-details-caption').hide();if(settings.imageArray[settings.activeImage][1]){$('#lightbox-image-details-caption').html(settings.imageArray[settings.activeImage][1]).show();}
	if(settings.imageArray.length>1){$('#lightbox-image-details-currentNumber').html(settings.txtImage+' '+(settings.activeImage+1)+' '+settings.txtOf+' '+settings.imageArray.length).show();}}
	function _set_navigation(){$('#lightbox-nav').show();$('#lightbox-nav-btnPrev,#lightbox-nav-btnNext').css({'background':'transparent url('+settings.imageBlank+') no-repeat'});if(settings.activeImage!=0){if(settings.fixedNavigation){$('#lightbox-nav-btnPrev').css({'background':'url('+settings.imageBtnPrev+') left 15% no-repeat'}).unbind().bind('click',function(){settings.activeImage=settings.activeImage-1;_set_image_to_view();return false;});}else{$('#lightbox-nav-btnPrev').unbind().hover(function(){$(this).css({'background':'url('+settings.imageBtnPrev+') left 15% no-repeat'});},function(){$(this).css({'background':'transparent url('+settings.imageBlank+') no-repeat'});}).show().bind('click',function(){settings.activeImage=settings.activeImage-1;_set_image_to_view();return false;});}}
	if(settings.activeImage!=(settings.imageArray.length-1)){if(settings.fixedNavigation){$('#lightbox-nav-btnNext').css({'background':'url('+settings.imageBtnNext+') right 15% no-repeat'}).unbind().bind('click',function(){settings.activeImage=settings.activeImage+1;_set_image_to_view();return false;});}else{$('#lightbox-nav-btnNext').unbind().hover(function(){$(this).css({'background':'url('+settings.imageBtnNext+') right 15% no-repeat'});},function(){$(this).css({'background':'transparent url('+settings.imageBlank+') no-repeat'});}).show().bind('click',function(){settings.activeImage=settings.activeImage+1;_set_image_to_view();return false;});}}
	_enable_keyboard_navigation();}
	function _enable_keyboard_navigation(){$(document).keydown(function(objEvent){_keyboard_action(objEvent);});}
	function _disable_keyboard_navigation(){$(document).unbind();}
	function _keyboard_action(objEvent){if(objEvent==null){keycode=event.keyCode;escapeKey=27;}else{keycode=objEvent.keyCode;escapeKey=objEvent.DOM_VK_ESCAPE;}
	key=String.fromCharCode(keycode).toLowerCase();if((key==settings.keyToClose)||(key=='x')||(keycode==escapeKey)){_finish();}
	if((key==settings.keyToPrev)||(keycode==37)){if(settings.activeImage!=0){settings.activeImage=settings.activeImage-1;_set_image_to_view();_disable_keyboard_navigation();}}
	if((key==settings.keyToNext)||(keycode==39)){if(settings.activeImage!=(settings.imageArray.length-1)){settings.activeImage=settings.activeImage+1;_set_image_to_view();_disable_keyboard_navigation();}}}
	function _preload_neighbor_images(){if((settings.imageArray.length-1)>settings.activeImage){objNext=new Image();objNext.src=settings.imageArray[settings.activeImage+1][0];}
	if(settings.activeImage>0){objPrev=new Image();objPrev.src=settings.imageArray[settings.activeImage-1][0];}}
	function _finish(){$('#jquery-lightbox').remove();$('#jquery-overlay').fadeOut(function(){$('#jquery-overlay').remove();});$('embed, object, select').css({'visibility':'visible'});}
	function ___getPageSize(){var xScroll,yScroll;if(window.innerHeight&&window.scrollMaxY){xScroll=window.innerWidth+window.scrollMaxX;yScroll=window.innerHeight+window.scrollMaxY;}else if(document.body.scrollHeight>document.body.offsetHeight){xScroll=document.body.scrollWidth;yScroll=document.body.scrollHeight;}else{xScroll=document.body.offsetWidth;yScroll=document.body.offsetHeight;}
	var windowWidth,windowHeight;if(self.innerHeight){if(document.documentElement.clientWidth){windowWidth=document.documentElement.clientWidth;}else{windowWidth=self.innerWidth;}
	windowHeight=self.innerHeight;}else if(document.documentElement&&document.documentElement.clientHeight){windowWidth=document.documentElement.clientWidth;windowHeight=document.documentElement.clientHeight;}else if(document.body){windowWidth=document.body.clientWidth;windowHeight=document.body.clientHeight;}
	if(yScroll<windowHeight){pageHeight=windowHeight;}else{pageHeight=yScroll;}
	if(xScroll<windowWidth){pageWidth=xScroll;}else{pageWidth=windowWidth;}
	arrayPageSize=new Array(pageWidth,pageHeight,windowWidth,windowHeight);return arrayPageSize;};function ___getPageScroll(){var xScroll,yScroll;if(self.pageYOffset){yScroll=self.pageYOffset;xScroll=self.pageXOffset;}else if(document.documentElement&&document.documentElement.scrollTop){yScroll=document.documentElement.scrollTop;xScroll=document.documentElement.scrollLeft;}else if(document.body){yScroll=document.body.scrollTop;xScroll=document.body.scrollLeft;}
	arrayPageScroll=new Array(xScroll,yScroll);return arrayPageScroll;};function ___pause(ms){var date=new Date();curDate=null;do{var curDate=new Date();}
	while(curDate-date<ms);};return this.unbind('click').click(_initialize);};})(jQuery);
	/* end lightbox */

	$(document).ready( function() {

		// Cufon headers
		Cufon.replace('h1');
		Cufon.replace('h2');

		// process links and set lightbox/popup events
		TYCHO.processLinks();

		// page tabber
		TYCHO.fadingpagetabber("#tab-nav");

		// Initialise homepage hovers
		TYCHO.altOverlay("#homepage-image-strip");
		
		// Initialise audio players
		TYCHO.setUpAudioPlayers({ "selector" : ".player" });
	});

})();