(function($) {
	$.fn.easySlider = function(options){
		var defaults = {			
			prevId: 		'prevBtn',
			prevText: 		'Previous',
			nextId: 		'nextBtn',	
			nextText: 		'Next',
			controlsFade:	true,
			firstId: 		'firstBtn',
			firstText: 		'First',
			firstShow:		false,
			lastId: 		'lastBtn',	
			lastText: 		'Last',
			lastShow:		false,				
			vertical:		false,
			speed: 			200,
			auto:			false,
			pause:			2000,
			continuous:		false,
			quantity: 		1
		}; 
		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 suitcount=(options.quantity>=s)?s:options.quantity;
			var suitwidth = suitcount*w;
			if((suitcount*w) > $("ul", obj).width() || suitcount<=0)
			{
				suitcount=1;
				suitwidth = suitcount*w;
			}
			obj.width(suitwidth); 
			obj.height(h); 
			obj.css("overflow","hidden");
			
			var ts = options.vertical? (parseInt(s/suitcount)-((s%suitcount>0)?0:1)):(s-suitcount);
			var t = 0;

			if(!options.vertical) 
			{
				$("ul", obj).css('width',s*w);
				$("li", obj).css('float','left');
			}
			else
			{
				$("ul", obj).css('width',suitcount*w)	
			}
	
			$("#"+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);				
			});
			
			var compare = t;
			function animate(dir,clicked){
				var ot = t;	
				switch(dir){
					case "next":
						t = (ot>=ts) ? (options.continuous ? 0 : ts) : t+1;	
						compare = t+1;					
						break; 
					case "prev":
						t = (t<=0) ? (options.continuous ? ts : 0) : t-1;
						compare = compare+1;
						break; 
					case "first":
						t = 0;
						break; 
					case "last":
						t = ts;
						break; 
					default:
						break; 
				};	
				
				var diff = Math.abs(ot-t);
				var speed = diff*options.speed;						
				if(!options.vertical) {
					p = (t*w*-1);
					$("ul",obj).animate(
						{ marginLeft: p },
						speed
					);				
				} else {
					p = (t*h*-1);
					$("ul",obj).animate(
						{ marginTop: p }, 
						speed
					);					
				};
				
				compare = compare-1;
				if(!options.continuous && options.controlsFade){
//				    if(compare>=ts){
//						$("#"+options.nextId).hide();
//						$("#"+options.prevId).show();
//					};
//					if(compare<ts || t==0){
//						$("#"+options.nextId).show();
//						$("#"+options.prevId).hide();
//					};
					
					if(t==ts){
//						$("#"+options.nextId).hide();
						$("#"+options.nextId).attr("class","productDetailIconNextOff");
						$("#"+options.lastId).hide();
					} else {
//						$("#"+options.nextId).show();
						$("#"+options.nextId).attr("class","productDetailIconNext");
						$("#"+options.lastId).show();
					};
					if(t==0){
					    $("#"+options.prevId).attr("class","productDetailIconLastOff");
//						$("#"+options.prevId).hide();
						$("#"+options.firstId).hide();
					} else {
						$("#"+options.prevId).show();
						$("#"+options.prevId).attr("class","productDetailIconLast");
						$("#"+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.continuous && options.controlsFade){					
				$("#"+options.prevId).attr("class","productDetailIconLastOff");
				$("#"+options.firstId).hide();				
			};				
			
		});
	  
	};

})(jQuery);