/*
 * 	Easy Slider 1.5 - 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: 		'prev',
			prevText: 		'Previous',
			nextId: 		'next',	
			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:			true,
			pause:			2000,
			continuous:		false
		}; 
		
		var options = $.extend(defaults, options);  
				
		this.each(function() {  
			var obj = $(this); 				
//			var s = $("div", obj).length;
//			var w = $("div", obj).width(); 
//			var h = $("div", obj).height(); 
			var s = $("div#slider").length;
			var w = $("div#slider").width(); 
			var h = $("div#slider").height();
			var oldw =w; 
			obj.width(w);
			obj.height(h); 
			obj.css("overflow","hidden");
//			var ts = s-1;
			var ts = $("a",$("div#slider")).length-1;
			var t = 0;
//			$("div", obj).css('width',s*w);
			$("div#slider").css('width',(ts+1)*w);
			$("div#slider>a").css('width',w);
			if(!options.vertical) $("div", obj).css('float','left');
			$("div#slider").css('left',0);
			
			if(options.controlsShow){
				var html = options.controlsBefore;
//				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 += '<a href="#" class="prev"></a>';
//				html += '<a href="#" class="next"></a>';

//				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);										
			};
	
			
	        $('div#bigbanner>a.prev').click( function(){ animate("prev",true); return false;} )
	        $('div#bigbanner>a.next').click( function(){ animate("next",true); return false;} )
			$(window).bind("resize", function(){
				$("div#slider").width($(document).width());
				var s = $("div#slider").length;
				var w = $("div#slider").width(); 
				var h = $("div#slider").height();
//				alert($(document).width());
				$("div#slider").width(w);
				$("div#slider").height(h); 
				var nl=parseFloat($("div#slider").css('margin-left'))/oldw*w;
				$("div#slider").css('margin-left',nl);
				$("div#slider").css("overflow","hidden");
//				var ts = s-1;
				var ts = $("a",$("div#slider")).length-1;
				var t = 0;
//				$("div", obj).css('width',s*w);
				$("div#slider").css('width',(ts+1)*w);
				$("div#slider>a").css('width',w);
				if(!options.vertical) $("div", obj).css('float','left');
				oldw = w;

			});
	        
			
//			$("a",".next").click(function(){		
//				animate("next",true);
//			});
//			$("a",".prev").click(function(){		
//				animate("prev",true);				
//			});	
//			$("a","#"+options.firstId).click(function(){		
//				animate("first",true);
//			});				
//			$("a","#"+options.lastId).click(function(){		
//				animate("last",true);				
//			});		
			
			function animate(dir,clicked){
				var ot = t;				
				switch(dir){
					case "next":
						t = (ot>=ts) ? (options.continuous ? 0 : ts) : t+1;						
						break; 
					case "prev":
						t = (t<=0) ? (options.continuous ? ts : 0) : t-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*($(document).width()-23)*-1);
					p = (t*(oldw)*-1);
					$("div#slider").animate(
						{ marginLeft: p }, 
						speed
					);				
				} else {
					p = (t*h*-1);
					$("div#slider").animate(
						{ marginTop: p }, 
						speed
					);					
				};
				
//				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.continuous && options.controlsFade){					
//				$("a","#"+options.prevId).hide();
//				$("a","#"+options.firstId).hide();				
//			};				
			
		});
	  
	};

})(jQuery);