/*
 * 	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
 *
 */
 
/*
 *	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:	false,
			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',
			
			/* Beginn eigene Options */
			gallerylist: false,
			gallerylistId: 'gallerylist',
			gallerySelectDiv: 'gallerylist_select'
		}; 
		
		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);										
			};
			
			/* ANFANG eingenen Bedingung für die Galerie */
			
			if(options.gallerylist){
				if(diekunden != ""){
					var anzahlKunden = diekunden.length - 1;
					if(anzahlKunden >= 24){
						
						$("#"+options.gallerySelectDiv).html("<div class='field_select_left'><ul id='"+ options.gallerylistId +"_left'></ul></div><div class='field_select_right'><ul id='"+ options.gallerylistId +"_right'></ul></div>");
					
						for(var x=0;x<=Math.floor(anzahlKunden / 2);x++){	
							/* Die Liste für die Auswahl wird aus einem Array generiert */
							$(document.createElement("li"))
								.attr("id",options.gallerylistId + (x+1))
								.html("<a href=\"/arbeit/portfolio.php?weKID="+dieIDs[x]+"\">"+ diekunden[x] +"</a>")
								.appendTo($("#"+options.gallerylistId+"_left"));
						};
						for(var h=Math.ceil(anzahlKunden / 2) + 1;h<=anzahlKunden;h++){	
							/* Die Liste für die Auswahl wird aus einem Array generiert */
							$(document.createElement("li"))
								.attr("id",options.gallerylistId + (h+1))
								.html("<a href=\"/arbeit/portfolio.php?weKID="+dieIDs[h]+"\">"+ diekunden[h] +"</a>")
								.appendTo($("#"+options.gallerylistId+"_right"));					
						};
					}
					else{
						$("#"+options.gallerySelectDiv).css("width","220px");
						$("#"+options.gallerySelectDiv).html("<ul id='"+ options.gallerylistId +"'></ul>");
						for(var x=0;x<=anzahlKunden;x++){	
							/* Die Liste für die Auswahl wird aus einem Array generiert */
							$(document.createElement("li"))
								.attr("id",options.gallerylistId + (x+1))
								.html("<a href=\"/arbeit/portfolio.php?weKID="+dieIDs[x]+"\">"+ diekunden[x] +"</a>")
								.appendTo($("#"+options.gallerylistId));
						};
					};
				
				};
				if(dienamen != ""){
					$("#"+options.gallerySelectDiv).html("<div class='field_select_left'><ul id='"+ options.gallerylistId +"_left'></ul></div><div class='field_select_right'><ul id='"+ options.gallerylistId +"_right'></ul></div>");
					
					for(var x=0;x<=Math.floor(s / 2);x++){	
						/* Die Liste für die Auswahl wird aus einem Array generiert */
						$(document.createElement("li"))
							.attr("id",options.gallerylistId + (x+1))
							.html("<a rel="+ x +" href=\"javascript:void(0);\">"+ dienamen[x] +"</a>")
							.appendTo($("#"+options.gallerylistId+"_left"))
							.click(function(){							
								animate($("a",$(this)).attr('rel'),true);
								$("#gallerylist_button_select span").html(dienamen[x]);
							});
					
					};
					for(var h=Math.floor(s / 2) + 1;h<s;h++){	
						/* Die Liste für die Auswahl wird aus einem Array generiert */
						$(document.createElement("li"))
							.attr("id",options.gallerylistId + (h+1))
							.html("<a rel="+ h +" href=\"javascript:void(0);\">"+ dienamen[h] +"</a>")
							.appendTo($("#"+options.gallerylistId+"_right"))
							.click(function(){							
								animate($("a",$(this)).attr('rel'),true);
								$("#gallerylist_button_select span").html(dienamen[h]);
							});
					};
				};
				
			};
			/* ENDE eingenen Bedingung für die Galerie */
			
			if(options.numeric){									
				for(var i=0;i<s;i++){						
					$(document.createElement("li"))
						.attr('id',options.numericId + (i+1))
						.addClass('but_choose')
						.html('<a rel='+ i +' href=\"javascript:void(0);\">'+ (i+1) +'</a>')
						.appendTo($("#"+ options.numericId))
						.click(function(){							
							animate($("a",$(this)).attr('rel'),true);
						}); 												
				};							
			} else {
				$("a","#"+options.nextId).click(function(){		
					animate("next",true);
					$("#gallerylist_button_select span").html(dienamen[t]);
				});
				$("a","#"+options.prevId).click(function(){		
					animate("prev",true);
					$("#gallerylist_button_select span").html(dienamen[t]);
				});	
				$("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 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){
				if (clickable){
					clickable = false;
					var ot = t;				
					switch(dir){
						case "next":
							t = (t>=ts) ? (options.continuous ? Number(t)+1 : ts) : Number(t)+1;						
							break; 
						case "prev":
							t = (t<=0) ? (options.continuous ?  Number(t)-1 : 0) :  Number(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);