/*
    anythingSlider v1.2
    
    By Chris Coyier: http://css-tricks.com
    with major improvements by Doug Neiner: http://pixelgraphics.us/
    based on work by Remy Sharp: http://jqueryfordesigners.com/


	To use the navigationFormatter function, you must have a function that
	accepts two paramaters, and returns a string of HTML text.
	
	index = integer index (1 based);
	panel = jQuery wrapped LI item this tab references
	@return = Must return a string of HTML/Text
	
	navigationFormatter: function(index, panel){
		return index + " Panel"; // This would have each tab with the text 'X Panel' where X = index
	}
*/

(function($){
	
    $.anythingSlider = function(el, options){
		

		// To avoid scope issues, use 'base' instead of 'this'
        // to reference this class from internal events and functions.
        var base = this;
        
        // Access to jQuery and DOM versions of element
        base.$el = $(el);
        base.el = el; 

		// Set up a few defaults
        base.currentPage = 1;
		base.timer = null;
		base.playing = false;

        // Add a reverse reference to the DOM object
        base.$el.data("AnythingSlider", base);
        
        base.init = function(){
            base.options = $.extend({},$.anythingSlider.defaults, options);
			
			// Cache existing DOM elements for later 
			base.$wrapper = base.$el.find('> div').css('overflow', 'hidden');
            base.$slider  = base.$wrapper.find('> ul');
            base.$items   = base.$slider.find('> li');
            base.$single  = base.$items.filter(':first');

			// Build the navigation if needed
			if(base.options.buildNavigation) base.buildNavigation();
        
        	// Get the details
            base.singleWidth = base.$single.outerWidth();
            base.pages = base.$items.length;

            // Top and tail the list with 'visible' number of items, top has the last section, and tail has the first
			// This supports the "infinite" scrolling
			base.$items.filter(':first').before(base.$items.filter(':last').clone().addClass('cloned'));
            base.$items.filter(':last' ).after(base.$items.filter(':first').clone().addClass('cloned'));

			// We just added two items, time to re-cache the list
            base.$items = base.$slider.find('> li'); // reselect
            
			// Setup our forward/backward navigation
			base.buildNextBackButtons();
		
			// If autoPlay functionality is included, then initialize the settings
			if(base.options.autoPlay) {
				base.playing = !base.options.startStopped; // Sets the playing variable to false if startStopped is true
				base.buildAutoPlay();
			};
			
			// If pauseOnHover then add hover effects
			if(base.options.pauseOnHover) {
				base.$el.hover(function(){
					base.clearTimer();
				}, function(){
					base.startStop(base.playing);
				});
			}
			
			// If a hash can not be used to trigger the plugin, then go to page 1
			if((base.options.hashTags == true && !base.gotoHash()) || base.options.hashTags == false){
				base.setCurrentPage(1);
			};
        };

		base.gotoPage = function(page, autoplay){
			// When autoplay isn't passed, we stop the timer
			if(autoplay !== true) autoplay = false;
			if(!autoplay) base.startStop(false);
			
			if(typeof(page) == "undefined" || page == null) {
				page = 1;
				base.setCurrentPage(1);
			};
			
			// Just check for bounds
			if(page > base.pages + 1) page = base.pages;
			if(page < 0 ) page = 1;

			var dir = page < base.currentPage ? -1 : 1,
                n = Math.abs(base.currentPage - page),
                left = base.singleWidth * dir * n;
			
			base.$wrapper.filter(':not(:animated)').animate({
                scrollLeft : '+=' + left
            }, base.options.animationTime, base.options.easing, function () {
                if (page == 0) {
                    base.$wrapper.scrollLeft(base.singleWidth * base.pages);
					page = base.pages;
                } else if (page > base.pages) {
                    base.$wrapper.scrollLeft(base.singleWidth);
                    // reset back to start position
                    page = 1;
                };
				base.setCurrentPage(page);
			});
			
		};
		
		base.setCurrentPage = function(page, move){
			
			// ##################################
			// ralf (galerie footerinfos einfuegen)
			// ##################################
			if( $(base.el).attr('class').match(/anythingSlider_typ2/gi) ) {

				var text_std	= $(base.$items[page]).find('.li_text_standard').html();
				var bildinfo 	= $(base.$items[page]).find('.li_text1').html();
				var credit		= $(base.$items[page]).find('.li_text2').html();
				if(bildinfo) {	
					$(base.el).find('.textDiv .text p').html(bildinfo);
				}
				else {	
					$(base.el).find('.textDiv .text p').html(text_std);
				}
				
				$(base.el).find('.photocredit').html(credit);
				
				
				
				li_items = base.$items.length -2;	// -2 = abzug der cloned li's

				if( page < 10 ) {
					$(base.el).find('.picPage').html('0'+page);
				}
				else {
					$(base.el).find('.picPage').html(page);
				}
				if( li_items < 10 ) {
					$(base.el).find('.picCount').html('0'+li_items);
				}
				else {
					$(base.el).find('.picCount').html(li_items);
				}
			}
			// ##############################################################



			// Set visual
			if(base.options.buildNavigation){
				//alert(page);

				//base.buildNavigation(page); //ralf



				base.$nav.find('.cur').removeClass('cur');
				//$(base.$navLinks[page - 1]).addClass('cur');

				//ralf
				if(li_items > showNavs) {
					if( page<=setMiddle ) {
						$(base.$navLinks[page - 1]).addClass('cur');
					}
					else if( page >= (li_items-setMiddle) ) {
						$(base.$navLinks[showNavs - (li_items%page+1)]).addClass('cur');
					}
					else if( page >= setMiddle ) {
						$(base.$navLinks[setMiddle]).addClass('cur');
					}
				}
				else {
					$(base.$navLinks[page - 1]).addClass('cur');
				}

		};
			
			// Only change left if move does not equal false
			if(move !== false) base.$wrapper.scrollLeft(base.singleWidth * page);

			// Update local variable
			base.currentPage = page;
		};
		
		
		// ralf  anfang
		//////////////////////////////////////////////////////////
		//////////////////////////////////////////////////////////
		//////////////////////////////////////////////////////////
		var showNavs = 5; // (anzahl der sichtbaren pagerelemente)
		//////////////////////////////////////////////////////////
		//////////////////////////////////////////////////////////
		//////////////////////////////////////////////////////////
		var setMiddle = parseInt(showNavs/2); 
		var li_items = 0; 
		

		base.setThumbNav = function(index,el,el2){

			if(el) {
				li_items 	= $(el).parent().parent().find('li').length;
				li_items_cl = $(el).parent().parent().find('li.cloned').length;
				li_items 	= (li_items - li_items_cl);
			}
			else if(el2) {
				li_items 	= $(el2).find('li').length;
				li_items_cl = $(el2).find('li.cloned').length;
				li_items 	= (li_items - li_items_cl);
			}
				
			if(li_items > showNavs) {

				if(el)  {
					$(el).parent().parent().parent().find('#thumbNav').remove();
				}
				else if (el2) {
					$(el2).find('#thumbNav').remove();
				}
				
				
				if(index==(li_items+1) && el2 ) {
					base.buildNavigation(1);
				}
				else if(index < 1 && el2 ) {
					base.buildNavigation(li_items-showNavs+1);
				}

				else if(index >= (li_items-setMiddle) ) {
					base.buildNavigation(li_items-showNavs+1);
				}
				else if( index > setMiddle) {
					index = index - setMiddle;
					base.buildNavigation(index);
				}
				else if(index<=setMiddle) {
					base.buildNavigation(1);
				}
	
			}

		};
		//ralf ende
		
		
		

		// Creates the numbered navigation links
		base.buildNavigation = function(page){

			if(!page) page = 1;

			base.$nav = $("<div id='thumbNav'></div>").appendTo(base.$el);
			base.$items.each(function(i,el){

				if(i<showNavs) {
					var index = i +  page;
					var $a = $("<a href='#'></a>");
					
					// If a formatter function is present, use it
					if( typeof(base.options.navigationFormatter) == "function"){
						$a.html(base.options.navigationFormatter(index, $(this)));
					} else {
						$a.text(index);
					}
					$a.click(function(e){
						base.gotoPage(index);

						// ralf (aufruf neue funktion)
						if(base.options.buildNavigation){ 
							base.setThumbNav(index,el);	
						}
						// ##########################
						
						if (base.options.hashTags)
							base.setHash('panel-' + index);
							
						e.preventDefault();
					});
					base.$nav.append($a);
				}
			});
			base.$navLinks = base.$nav.find('> a');
		};




		base.goForward = function(autoplay){
			if(autoplay !== true) autoplay = false;
			base.gotoPage(base.currentPage + 1, autoplay);

			// ralf (aufruf neue funktion)
			if(base.options.buildNavigation){ 
				base.setThumbNav(base.currentPage+1,'',el);
			}
			// ##########################


			

			//ralf
			el_class=($(el).attr('class'));
			if(el_class.match(/anythingSlider_typ1/gi)) {
				if( (base.currentPage+1) > base.pages ) {
					jQuery('.accordion_typ1 #link1').click();
				}
				else {
					jQuery('.accordion_typ1 #link'+(base.currentPage + 1)+'').click();
				}
			}
		};
		
		base.goBack = function(){
			base.gotoPage(base.currentPage - 1);
			
			// ralf (aufruf neue funktion)
			if(base.options.buildNavigation){ 
				base.setThumbNav(base.currentPage-1,'',el);
			}
			// ##########################



			//ralf
			el_class=($(el).attr('class'));
			if(el_class.match(/anythingSlider_typ1/gi)) {
				if((base.currentPage-1==0)) {
					jQuery('.accordion_typ1 #link'+base.pages+'').click();
				}
				else {
					jQuery('.accordion_typ1 #link'+(base.currentPage - 1)+'').click();
				}
			}
		};
		
		// This method tries to find a hash that matches panel-X
		// If found, it tries to find a matching item
		// If that is found as well, then that item starts visible
		base.gotoHash = function(){
			if(/^#?panel-\d+$/.test(window.location.hash)){
				var index = parseInt(window.location.hash.substr(7));
				var $item = base.$items.filter(':eq(' + index + ')');
				if($item.length != 0){
					base.setCurrentPage(index);
					return true;
				};
			};
			
			return false; // A item wasn't found;
		};
        
		
		
		// Creates the Forward/Backward buttons
		base.buildNextBackButtons = function(){
			var $forward = $('<a class="arrow forward">&gt;</a>'),
				$back    = $('<a class="arrow back">&lt;</a>');
				
            // Bind to the forward and back buttons
            $back.click(function(e){
                base.goBack();
				e.preventDefault();
            });

            $forward.click(function(e){
                base.goForward();
				e.preventDefault();
            });

			// Append elements to page
			base.$wrapper.after($back).after($forward);
		};
		
		// Creates the Start/Stop button
		base.buildAutoPlay = function(){

			base.$startStop = $("<a href='#' id='start-stop'></a>").html(base.playing ? base.options.stopText :  base.options.startText);
			base.$el.append(base.$startStop);            
            base.$startStop.click(function(e){
				base.startStop(!base.playing);
				e.preventDefault();
            });

			// Use the same setting, but trigger the start;
			base.startStop(base.playing);
		};
		
		// Handles stopping and playing the slideshow
		// Pass startStop(false) to stop and startStop(true) to play
		base.startStop = function(playing){
			if(playing !== true) playing = false; // Default if not supplied is false
			
			// Update variable
			base.playing = playing;
			
			// Toggle playing and text
			if(base.options.autoPlay) base.$startStop.toggleClass("playing", playing).html( playing ? base.options.stopText : base.options.startText );
			
			if(playing){
				base.clearTimer(); // Just in case this was triggered twice in a row
				base.timer = window.setInterval(function(){
					base.goForward(true);
				}, base.options.delay);
			} else {
				base.clearTimer();
			};
		};
		
		base.clearTimer = function(){
			// Clear the timer only if it is set
			if(base.timer) window.clearInterval(base.timer);
		};
		
		// Taken from AJAXY jquery.history Plugin
		base.setHash = function ( hash ) {
			// Write hash
			if ( typeof window.location.hash !== 'undefined' ) {
				if ( window.location.hash !== hash ) {
					window.location.hash = hash;
				};
			} else if ( location.hash !== hash ) {
				location.hash = hash;
			};
			
			// Done
			return hash;
		};
		// <-- End AJAXY code


		// Trigger the initialization
        base.init();
    };

	
    $.anythingSlider.defaults = {
        easing: "swing",                // Anything other than "linear" or "swing" requires the easing plugin
        autoPlay: true,                 // This turns off the entire FUNCTIONALY, not just if it starts running or not
        startStopped: false,            // If autoPlay is on, this can force it to start stopped
        delay: 3000,                    // How long between slide transitions in AutoPlay mode
        animationTime: 600,             // How long the slide transition takes
        hashTags: true,                 // Should links change the hashtag in the URL?
        buildNavigation: true,          // If true, builds and list of anchor links to link to each slide
        pauseOnHover: true,             // If true, and autoPlay is enabled, the show will pause on hover
		startText: "Start",             // Start text
		stopText: "Stop",               // Stop text
		navigationFormatter: null       // Details at the top of the file on this use (advanced use)
    };
	

    $.fn.anythingSlider = function(options){
		if(typeof(options) == "object"){
		    return this.each(function(i){			
				(new $.anythingSlider(this, options));

	            // This plugin supports multiple instances, but only one can support hash-tag support
				// This disables hash-tags on all items but the first one
				options.hashTags = false;
	        });	
		} else if (typeof(options) == "number") {

			return this.each(function(i){
				var anySlide = $(this).data('AnythingSlider');
				if(anySlide){
					anySlide.gotoPage(options);
				}
			});
		}
    };

	
})(jQuery);