/*
 * Easy Slider 1.7 - jQuery plugin
 *
 *	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
 *
 */
 
/*
 *	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>
 *
 * 19/11/2010
 * AustroCham Customized 
 * Show progress bullets, page numbers and 'show more' link
 * Added function: updateControlSettings()
 */

(function($) {

	$.fn.easySlider = function(options){
	  
		// default configuration properties
		var defaults = {			
			prevId: 			'prevBtn',
			prevText: 		'Previous',
			nextId: 			'nextBtn',	
			nextText: 		'Next',
			controlsShow:	true,
			controlsBefore:'<div class="controls">',
			controlsAfter:	'<div>',	
			controlsFade:	true,
			firstId: 		'firstBtn',
			firstText: 		'First',
			firstShow:		false,
			lastId: 			'lastBtn',	
			lastText: 		'Last',
			lastShow:		false,				
			vertical:		false,
			speed: 			800,
			auto:				false,
			pause:			5000,
			continuous:		false, 
			numeric: 		false,
			dots:		 		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 = '';
				
				if(options.numeric || options.dots){
					html += options.controlsBefore;	
					// html += ' <a id="slide_link" class="show-details" href="#as">Show details</a>';
				}
							
				if(options.numeric){
					html += '<ol id="'+ options.numericId +'"></ol>';
				}else if(options.dots){
					html += '<ul id="'+ options.numericId +'"></ul>';					
				}			
			
				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);\" title="'+ options.prevText +'">'+ options.prevText +'</a></span>';
				if(options.numeric || options.dots) {
					html += ' <span id="counter" class="counter-span"></span>';
				}
				html += ' <span id="'+ options.nextId +'"><a href=\"javascript:void(0);\" title="'+ options.nextText +'">'+ options.nextText +'</a></span>';
				if(options.lastShow) html += ' <span id="'+ options.lastId +'"><a href=\"javascript:void(0);\">'+ options.lastText +'</a></span>';	
				
				html += (options.numeric || options.dots) ? options.controlsAfter : '';						
				$(obj).after(html);										
			};
			
			if(options.numeric || options.dots){									
				for(var i=0;i<s;i++){
					var toShow = (options.numeric) ? i+1 : '&bull;';
					var first = (i == 0) ? 'first' : null;
					$(document.createElement("li"))
						.attr('id',options.numericId + (i+1))
						.attr('class',first)
						.html('<a rel='+ i +' href=\"javascript:void(0);\">'+ toShow +'</a>')
						.appendTo($("#"+ options.numericId))
						.click(function(){							
							animate($("a",$(this)).attr('rel'),true);
						}); 												
				};			
									
			} 
				$("a","#"+options.nextId).click(function(){					
					animate("next",true);
				});
				$("a","#"+options.prevId).click(function(){		
					animate("prev",true);				
				});	
				$("a","#"+options.firstId).click(function(){		
					animate("first",true);
				});				
				$("a","#"+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 updateControlSettings(){
				
				var thisSlide = t + 1;						
				var totalSlides = ts + 1;					 
				thisSlide = (t == totalSlides) ? 1 : thisSlide;					
				thisSlide = (thisSlide == 0) ? totalSlides : thisSlide;	
				var ulSlide = thisSlide + 1;									
				var slideLink = ($('#slideshow ul li:nth-child('+ulSlide+') a').attr('href'));
				$('a#slide_link').attr('href',slideLink);
				var teil=slideLink.substr(0,19);
				if (teil=="http://www.abss.at/")
				$('a#slide_link').attr('target','_self');
				else
				$('a#slide_link').attr('target','_blank');
				$('#counter').text(thisSlide+'/'+totalSlides);		
			};
			
			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 || options.dots) setCurrent(t);
			};
			
			function animate(dir,clicked){
			
				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 = Math.abs(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.numeric || options.dots) setCurrent(t);
					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);
					};
					
					// updateControlSettings();
				};
			
			};
			// init
			var timeout;
			if(options.auto){;
				timeout = setTimeout(function(){
					animate("next",false);
				},options.pause);
			};
			
			//updateControlSettings();
			
			if(options.numeric || options.dots) setCurrent(0);
			var thisSlide = t + 1;	
			var totalSlides = ts + 1;					 
			$('#counter').text(thisSlide+'/'+totalSlides);	
			
			if(!options.continuous && options.controlsFade){					
				$("a","#"+options.prevId).hide();
				$("a","#"+options.firstId).hide();				
			};				
			
		});
	  
	};

})(jQuery);