/*
 * 	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>
 *
 */

jQuery.fn.fadeIn = function(speed, callback) { 
    return this.animate({opacity: 'show'}, speed, function() { 
        if (jQuery.browser.msie)  
            this.style.removeAttribute('filter');  
        if (jQuery.isFunction(callback)) 
            callback();  
    }); 
}; 
 
jQuery.fn.fadeOut = function(speed, callback) { 
    return this.animate({opacity: 'hide'}, speed, function() { 
        if (jQuery.browser.msie)  
            this.style.removeAttribute('filter');  
        if (jQuery.isFunction(callback)) 
            callback();  
    }); 
}; 
 
jQuery.fn.fadeTo = function(speed,to,callback) { 
    return this.animate({opacity: to}, speed, function() { 
        if (to == 1 && jQuery.browser.msie)  
            this.style.removeAttribute('filter');  
        if (jQuery.isFunction(callback)) 
            callback();  
    }); 
};
(function($) {

	$.fn.easySlider = function(options){
	  
		// default configuration properties
		var defaults = {			
			prevId: 		'prevBtn',
			prevText: 		'Previous',
			prevClass:		'prevBtn',
			nextId: 		'nextBtn',	
			nextText: 		'Next',
			nextClass:		'nextBtn',
			controlsShow:	true,
			//MK Both Controls
			controlsBoth:	false,
			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',
			numericClass:	'pictab-numeric'
		}; 

		var options = $.extend(defaults, options);  

		this.each(function() {
			var obj = $(this);
			if ($("ul", obj).length == 0) { return true; }
			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){
				//MK edit le to remove rel attribut in a tags for lightbox
				var le;
				le = $("ul li:last-child", obj).clone().css("margin-left","-"+ w +"px");
				le.find('a').removeAttr('rel');
				$("ul", obj).prepend(le);
				le = $("ul li:nth-child(2)", obj).clone();
				le.find('a').removeAttr('rel');
				$("ul", obj).append(le);
				$("ul", obj).css('width',(s+1)*w);
			};				
			
			if(!options.vertical) $("li", obj).css('float','left');
			
			//Only if controlsBoth is false
			if(!options.controlsBoth){
			
				if(options.controlsShow){
					var html = options.controlsBefore;				
					if(options.numeric){
						html += '<ol id="'+ options.numericId +'" class="'+ options.numericClass +'"></ol>';
					} else {
						if(options.firstShow) html += '<span id="'+ options.firstId +'"><a href=\"#\" onclick=\"javascript: return false;\">'+ options.firstText +'</a></span>';
						html += ' <span id="'+ options.prevId +'" class="'+ options.prevClass +'"><a href=\"#\" onclick=\"javascript: return false;\">'+ options.prevText +'</a></span>';
						html += ' <span id="'+ options.nextId +'" class="'+ options.nextClass +'"><a href=\"#\" onclick=\"javascript: return false;\">'+ options.nextText +'</a></span>';
						if(options.lastShow) html += ' <span id="'+ options.lastId +'"><a href=\"#\" onclick=\"javascript: return false;\">'+ options.lastText +'</a></span>';				
					};
					
					html += options.controlsAfter;						
					$(obj).after(html);										
				};
				
				if(options.numeric){
					for(var i=0;i<s;i++){						
						$(document.createElement("li"))
							.attr('id',options.numericId + (i+1))
							.attr('class', 'pictab-numeric' + i)
							.html('<a rel='+ i +' href=\"#\" onclick=\"javascript: return false;\">'+ (i+1) +'</a>')
							.appendTo($("#"+ options.numericId))
							.click(function(){
								animate($("a",$(this)).attr('rel'),true);
							}); 												
					};
				} else {
					$("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);				
					});				
				};
			};
			
			//both controls
			if(options.controlsBoth){
			  if(s!=0) {			
				var html = options.controlsBefore;
					
				if((options.numeric) && (s!=1)){
					html += '<ol id="'+ options.numericId +'" class="'+ options.numericClass +'"></ol>';
						if(options.firstShow) html += '<span id="'+ options.firstId +'"><a href=\"#\" onclick=\"javascript: return false;\">'+ options.firstText +'</a></span>';
						html += ' <span id="'+ options.prevId +'" class="'+ options.prevClass +'"><a href=\"#\" onclick=\"javascript: return false;\">'+ options.prevText +'</a></span>';
						html += ' <span id="'+ options.nextId +'" class="'+ options.nextClass +'"><a href=\"#\" onclick=\"javascript: return false;\">'+ options.nextText +'</a></span>';
						if(options.lastShow) html += ' <span id="'+ options.lastId +'"><a href=\"#\" onclick=\"javascript: return false;\">'+ options.lastText +'</a></span>';
				};
				if (s==1) {
					html += '<ol id="'+ options.numericId +'" class="smalllist"></ol>';
				}
				html += options.controlsAfter;						
				$(obj).after(html);	
								
				for(var i=0;i<s;i++){
					if (s!=1) {
					$(document.createElement("li"))
						.attr('id',options.numericId + (i+1))
						.attr('class',options.numericClass + i)
						.html('<a rel='+ i +' href=\"#\" onclick=\"javascript: return false;\">'+ (i+1) +'</a>')
						.appendTo($("#"+ options.numericId))
						.click(function(){
							animate($("a",$(this)).attr('rel'),true);
						}); 	
					}
					else {
					$(document.createElement("li"))
						.attr('id',options.numericId + (i+1))
						.attr('class',options.numericClass + i)
						.html(i+1)
						.appendTo($("#"+ options.numericId))
						.click(function(){
							animate($("a",$(this)).attr('rel'),true);
						});	
					}
				};
				var count_li = i;		
				$("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 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 ? (parseInt(t)+1) : ts) : (parseInt(t)+1);
							break; 
						case "prev":
							t = (t<=0) ? (options.continuous ? (parseInt(t)-1) : 0) : (parseInt(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);
						//console.log('continuous:'+options.continuous+' | ts:'+ts+' | p:'+p+' | ot:'+ot+' | t:'+t+' | w:'+w);
						if (speed == 0) {
							$("ul",obj).fadeTo(500,0,function(){
								$("ul",obj).animate({ marginLeft: p },{ queue:false, duration:speed, complete:adjust });
							});
							$("ul",obj).fadeTo(500,1);
						} else {						
							$("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);
		
		//Change to work with continuous sliding
			if(!options.continuous && options.controlsFade){					
				$("a","#"+options.prevId).hide();
				$("a","#"+options.firstId).hide();				
			};			
			
		});
	  
	};

})(jQuery);