/*
 * 	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:	true,
			firstId: 		'firstBtn',
			firstText: 		'First',
			firstShow:		false,
			lastId: 		'lastBtn',	
			lastText: 		'Last',
			lastShow:		false,				
			vertical:		false,
			speed: 			800,
			auto:			false,
			//pause:			2000,
			pause:          4000,
			continuous:		false, 
			numeric: 		false,
			numericId: 		'controls',
			nbElements:     1
			
		}; 
		
		var options = $.extend(defaults, options);  
				
		this.each(function() {  
			var obj = $(this); 				
			var s = $("li", obj).length;
			
			if(options.nbElements>s)
			{
				for(i=s;i<options.nbElements;i++ )
				$("ul", obj).append('<li class="ajax_block_product  item" style="width: 350px; margin: 0pt; display: list-item; float: left;">       <a  class="product_img_link" href="javascript:void(0)"><img  alt="" src="img/p/en-default-scroll.jpg" onclick="$(\'img#bigpic\').attr(\'src\',\'img/p/en-default-show.jpg\'); return true; " ></a>                    </li>');
				s=options.nbElements;
			};
			var w = $("li", obj).width(); 
			var iw = $("li img", obj).width(); //image width
			var ib = 2;//$("li img", obj).css('border-right-width');
			var h = $("li", obj).height(); 
			var clickable = true;
			var thew=w*(options.nbElements-1) + iw;
			//alert(thew);
			obj.width(thew); 
			if(!options.numeric)
				obj.width(obj.width()+ib*2); 
			//obj.height(h); //Must be debugged after ^^
			obj.css("overflow","hidden");
			var ts = s-options.nbElements;
			var t = 0;
			var on_next;
			var on_prev;
			var timeout;
			
			if(options.nbElements <= s ) 
			$("ul", obj).css('width',s*w);
			$("ul", obj).css('list-style-type','none');
			//special case
			if(s <= options.nbElements)
			{
				obj.width(w*options.nbElements); 
				$("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 {
				$("a","#"+options.nextId).hover(function(){
					clearTimeout(timeout); 
					on_next=true;
					animate("next",true);
					
					//
				},
				function(){
					on_next=false;
				}
					);
				/*$("a","#"+options.nextId).click(function(){
					clearTimeout(timeout); 
					var pause2=options.pause;
					var speed2= options.speed;
					var nbe2=options.nbElements;
					options.pause=0;
					options.speed *=2;
					options.nbElements=ts;
					
					animate("next",true);
					options.pause=pause2;
					options.speed =speed2;
					options.nbElements=nbe2;
				}
						);*/
				$("a","#"+options.prevId).hover(function(){
					clearTimeout(timeout); 
					on_prev=true;
					animate("prev",true);
					
					//clearTimeout(timeout);
				},
				function(){on_prev=false;}
				);	
				/*$("a","#"+options.prevId).click(function(){
					clearTimeout(timeout); 
					var pause2=options.pause;
					var speed2= options.speed;
					var nbe2=options.nbElements;
					options.pause=0;
					options.speed *=2;
					options.nbElements=ts;
					
					animate("prev",true);
					options.pause=pause2;
					options.speed =speed2;
					options.nbElements=nbe2;
				}
				);*/
				$("a","#"+options.firstId).hover(function(){		
					animate("first",true);
				});				
				$("a","#"+options.lastId).hover(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 = (ot>=ts) ? (options.continuous ? t+1 : ts) : Math.min(t+options.nbElements,ts);
							
							break; 
						case "prev":
							t = (t<=0) ? (options.continuous ? t-1 : 0) : Math.max(t-options.nbElements,0);
							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);
					};*/
					
					if(on_next)
					{
						timeout = setTimeout(function(){
							
							animate("next",false);
							
						},diff*options.speed+options.pause);
					}
					else if (on_prev)
						timeout = setTimeout(function(){
							animate("prev",false);
						},diff*options.speed+options.pause);
					
				};
				
			};
			// init
			
			/*if(options.auto){;
				timeout = setTimeout(function(){
					animate("next",false);
				},options.pause);
			};*/		
			if(on_next)
				timeout = setTimeout(function(){
					animate("next",false);
				},options.pause);
			else if (on_prev)
				timeout = setTimeout(function(){
					animate("prev",false);
				},options.pause);
			
			if(options.numeric) setCurrent(0);
		
			if(!options.continuous && options.controlsFade){					
				$("a","#"+options.prevId).hide();
				$("a","#"+options.firstId).hide();				
			};				
			if(options.nbElements>=s)
			{					
				$("a","#"+options.nextId).hide();
				$("a","#"+options.lastId).hide();				
			};				
			
			
		});
	  
	};

})(jQuery);