// zobrazi/skryje div a nastavi classu patricne li
function showTab(ulId,divPrefix,activLiIndex) {	
	var separator = '_'; 
	var ul = $('#'+ulId);
	var li = $('#'+ulId+' a');
	var liId = ulId+separator+activLiIndex;
	for(var i=0;i<=(li.length-1);i++) {
		var liIdSplit=li[i]['id'].split(separator);
		var liIndex = liIdSplit[liIdSplit.length-1]; //zjisteni indexu li (stejny jako index divu)
		var divId = divPrefix+separator+liIndex; // id divu
		var divElm = $('#'+divId); // object div
		var liElm = $('#'+li[i]['id']); // object li
		var divClassSplit = li[i]['id'].split(' ');
		var divClassDefault = divClassSplit[0]; //defaultni css class divu
		if(li[i]['id']==liId) {
			var liClass = 'active';
			var divClass = divClassDefault;
		} else {
			var liClass = '';
			var divClass = divClassDefault+' invisible';
		}
		liElm.attr('class',liClass);
		divElm.attr('class',divClass);
	}
}

(function($){
    $.sliderbox = function(el, options){
        var base = this;
        base.$el = $(el);
        base.el = el; 
        base.currentPage = 1;
		base.timer = null;
		base.playing = false;
        base.$el.data("sliderbox", base);
        base.init = function(){
            base.options = $.extend({},$.sliderbox.defaults, options);
			base.$wrapper = base.$el.find('> div').css('overflow', 'hidden');
            base.$slider  = base.$wrapper.find('> .ul');
            base.$items   = base.$slider.find('> .li');
			base.$names	  = base.$slider.find('.linkname');
			base.$single  = base.$items.filter(':first');
			if(base.options.buildNavigation) base.buildNavigation();
            base.singleWidth = base.$single.outerWidth();
            base.pages = base.$items.length;
			base.$items.filter(':first').before(base.$items.filter(':last').clone().addClass('cloned'));
            base.$items.filter(':last' ).after(base.$items.filter(':first').clone().addClass('cloned'));
            base.$items = base.$slider.find('> .li');
			// Setup our forward/backward navigation
			//base.buildNextBackButtons();
			
			if(base.options.autoPlay) {// If autoPlay functionality is included, then initialize the settings
				base.playing = !base.options.startStopped; // Sets the playing variable to false if startStopped is true
				base.buildAutoPlay();
			};
			
			if(base.options.pauseOnHover) {// If pauseOnHover then add hover effects
				base.$el.hover(function(){
					base.clearTimer();
				}, function(){
					base.startStop(base.playing);
				});
			}
			if((base.options.hashTags == true && !base.gotoHash()) || base.options.hashTags == false){ // If a hash can not be used to trigger the plugin, then go to page 1
				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){// Set visual
			if(base.options.buildNavigation){
				base.$nav.find('.cur').removeClass('cur');
				$(base.$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;
		};
		
		base.goForward = function(autoplay){
			if(autoplay !== true) autoplay = false;
			base.gotoPage(base.currentPage + 1, autoplay);
		};
		
		base.goBack = function(){
			base.gotoPage(base.currentPage - 1);
		};
		
		// 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 numbered navigation links
		base.buildNavigation = function(){
			base.$nav = $("<div id='slidermenu'></div>").appendTo(base.$el);
			
			base.$items.each(function(i,el){

				var index = i + 1;
				var $a = $("<a href=''></a>");
				
				//alert(base.$items[i].innerhtml)				
				// If a formatter function is present, use it
				if( typeof(base.options.navigationFormatter) == "function"){
					$a.html(base.options.navigationFormatter(index, $(this)));
				} else {
					nadpis = base.$names[index-1].innerHTML; //nadpis = base.$names[index-1].innerHTML;
					$a.append(nadpis);
					//alert(nadpis);
				}
				$a.click(function(e){
                    base.gotoPage(index);
                    if (base.options.hashTags)
						base.setHash('panel-' + index);
                    e.preventDefault();
				});
				base.$nav.append($a);
			});
			base.$navLinks = base.$nav.find('> a');
			//document.write(inspect( base.$items, 3 )); //function inspect(obj [, maxLevels [, level]]) 
		};
		
		
		// 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();});
            $forward.click(function(e){ base.goForward();e.preventDefault();});
			base.$wrapper.after($back).after($forward);// Append elements to page
		};
		
		// 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();});
			base.startStop(base.playing);// Use the same setting, but trigger the start;
		};
		// 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
			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();
    };

	
    $.sliderbox.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.sliderbox = function(options){
		if(typeof(options) == "object"){
		    return this.each(function(i){			
				(new $.sliderbox(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('sliderbox');
				if(anySlide){
					anySlide.gotoPage(options);
				}
			});
		}
    };

	
})(jQuery);