/*
 * 	Easy Slider 1.7 - jQuery plugin
 *	written by Alen Grakalic
 *	http://cssglobe.com/post/4004/easy-slider-15-the-easiest-jquery-plugin-for-sliding
 *
 *	Copyright (c) 2009 Alen Grakalic (http://cssglobe.com)
 *	Dual licensed under the MIT (MIT-LICENSE.txt)
 *	and GPL (GPL-LICENSE.txt) licenses.
 *
 *	Built for jQuery library
 *	http://jquery.com
 *
 *	Beleraktam egy kis részt, hogy az image name alt es link paraméterét kiírja külön div-ekre.
 *	By.: Sigee
 *
 */
 
/*
 *	markup example for $('#slider').easySlider();
 *	
 * 	<div id=\"slider\">
 *		<ul>
 *			<li><img src=\"images/01.jpg\" alt=\"\" /></li>
 *			<li><img src=\"images/02.jpg\" alt=\"\" /></li>
 *			<li><img src=\"images/03.jpg\" alt=\"\" /></li>
 *			<li><img src=\"images/04.jpg\" alt=\"\" /></li>
 *			<li><img src=\"images/05.jpg\" alt=\"\" /></li>
 *		</ul>
 *	</div>
 *
 */

(function($) {

	$.fn.easySlider = function(options){

		// default configuration properties
		var defaults = {
			prevId: 		'prevBtn',
			prevText: 		'Previous',
			nextId: 		'nextBtn',
			nextText: 		'Next',
			controlsShow:	true,
			controlsBefore:	'',
			controlsAfter:	'',	
			controlsFade:	true,
			firstId: 		'firstBtn',
			firstText: 		'First',
			firstShow:		false,
			lastId: 		'lastBtn',
			lastText: 		'Last',
			lastShow:		false,
			vertical:		false,
			speed: 			800,
			auto:			false,
			pause:			2000,
			continuous:		false, 
			numeric: 		false,
			numericId: 		'controls'
		}; 
		
		var options = $.extend(defaults, options);

		this.each(function() {
			var obj = $(this);
			var s = $('li', obj).length;
			var w = $('li', obj).width();
			var h = $('li', obj).height();
			var clickable = true;
			obj.width(w); 
			obj.height(h); 
			obj.css('overflow','hidden');
			var ts = s-1;
			var t = 0;
			$('ul', obj).css('width',s*w);

			if(options.continuous){
				$('ul', obj).prepend($('ul li:last-child', obj).clone().css('margin-left','-'+ w +'px'));
				$('ul', obj).append($('ul li:nth-child(2)', obj).clone());
				$('ul', obj).css('width',(s+1)*w);
			};

			if(!options.vertical) $('li', obj).css('float','left');

			if(options.controlsShow){
				var html = options.controlsBefore;
				if(options.numeric){
					html += '<ol id="'+ options.numericId +'"></ol>';
				} else {
					if(options.firstShow) html += '<span id="'+ options.firstId +'"><a href="javascript:void(0);">'+ options.firstText +'</a></span>';
					html += ' <span id="'+ options.prevId +'"><a href="javascript:void(0);">'+ options.prevText +'</a></span>';
					html += ' <span id="'+ options.nextId +'"><a href="javascript:void(0);">'+ options.nextText +'</a></span>';
					if(options.lastShow) html += ' <span id="'+ options.lastId +'"><a href="javascript:void(0);">'+ options.lastText +'</a></span>';
				};
				
				html += options.controlsAfter;
				$(obj).after(html);
			};
			
			if(options.numeric){
				for(var i=0;i<s;i++){
					$(document.createElement('li'))
						.attr('id',options.numericId + (i+1))
						.html('<a rel='+ i +' href="javascript:void(0);">'+ (i+1) +'</a>')
						.appendTo($('#'+ options.numericId))
						.click(function(){
							animate($('a',$(this)).attr('rel'),true);
						});
				};
			} else {
				$('#'+options.nextId).click(function(){
					animate('next',true);
				});
				$('#'+options.prevId).click(function(){
					animate('prev',true);
				});
				$('#'+options.firstId).click(function(){
					animate('first',true);
				});
				$('#'+options.lastId).click(function(){
					animate('last',true);
				});
			};
			
			function setCurrent(i){
				i = parseInt(i)+1;
				$('li', '#' + options.numericId).removeClass('current');
				$('li#' + options.numericId + i).addClass('current');
			};
			
			function adjust(){
				if(t>ts) t=0;
				if(t<0) t=ts;
				if(!options.vertical) {
					$('ul',obj).css('margin-left',(t*w*-1));
				} else {
					$('ul',obj).css('margin-left',(t*h*-1));
				}
				clickable = true;
				if(options.numeric) setCurrent(t);
			};
			
			function animate(dir,clicked){
				var images = $('img', obj);
				if (images[t].getAttribute('name') != '') $('#velemeny #name').html('<span class="idezojel">"</span>'+images[t].getAttribute('name')+'<span class="idezojel">"</span>');
				else $('#velemeny #name').html('&nbsp;');
				if (images[t].getAttribute('alt') != '') $('#velemeny #text').html('<span style="color: #fe6c05;">Véleményük rólunk:</span><br/>"'+images[t].getAttribute('alt')+'"<br/><span style="color: #d90101;position:relative;left: 100px;font-style:normal;">'+images[t].getAttribute('link')+'</span>');
				else $('#velemeny #name').html('&nbsp;');
				if (clickable){
					clickable = false;
					var ot = t;
					switch(dir){
						case 'next':
							t = (ot>=ts) ? (options.continuous ? t+1 : ts) : t+1;
							break; 
						case 'prev':
							t = (t<=0) ? (options.continuous ? t-1 : 0) : t-1;
							break; 
						case 'first':
							t = 0;
							break; 
						case 'last':
							t = ts;
							break; 
						default:
							t = dir;
							break; 
					};	
					var diff = Math.abs(ot-t);
					var speed = diff*options.speed;
					if(!options.vertical) {
						p = (t*w*-1);
						$('ul',obj).animate(
							{ marginLeft: p }, 
							{ queue:false, duration:speed, complete:adjust }
						);
					} else {
						p = (t*h*-1);
						$('ul',obj).animate(
							{ marginTop: p }, 
							{ queue:false, duration:speed, complete:adjust }
						);
					};
					
					if(!options.continuous && options.controlsFade){
						if(t==ts){
							$('a','#'+options.nextId).hide();
							$('a','#'+options.lastId).hide();
						} else {
							$('a','#'+options.nextId).show();
							$('a','#'+options.lastId).show();
						};
						if(t==0){
							$('a','#'+options.prevId).hide();
							$('a','#'+options.firstId).hide();
						} else {
							$('a','#'+options.prevId).show();
							$('a','#'+options.firstId).show();
						};
					};
					
					if(clicked) clearTimeout(timeout);
					if(options.auto && dir=='next' && !clicked){;
						timeout = setTimeout(function(){
							animate('next',false);
						},diff*options.speed+options.pause);
					};
			
				};
				
			};
			// init
			var timeout;
			if(options.auto){;
				timeout = setTimeout(function(){
					animate('next',false);
				},options.pause);
			};
			
			if(options.numeric) setCurrent(0);
		
			if(!options.continuous && options.controlsFade){
				$('a','#'+options.prevId).hide();
				$('a','#'+options.firstId).hide();
			};
			
		});
	  
	};

})(jQuery);