/*
 * 	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.easySlider2 = function(options){
	  
		// default configuration properties
		var defaults = {			
			prevId: 		'prevBtn2',
			prevText: 		'Previous',
			nextId: 		'nextBtn2',	
			nextText: 		'Next',
			controlsShow:	true,
			controlsBefore:	'',
			controlsAfter:	'',	
			controlsFade:	true,
			firstId: 		'firstBtn2',
			firstText: 		'First',
			firstShow:		false,
			lastId: 		'lastBtn2',
			lastText: 		'Last',
			lastShow:		false,
			vertical:		false,
			speed: 			600,
			auto:			true,
			pause:			10000,
			continuous:		true,
			playId: 		'playBtn2',
			pauseId: 		'pauseBtn2'
		}; 
		
			
		var options = $.extend(defaults, options);  
				
		this.each(function() {  
			var obj = $(this); 				
			var s = $("li", obj).length;
			if(s<2)
				return;
			var w = 1024;//$("li", obj).width()*6; 
			var h = $("li", obj).height(); 
			var ts = s-1;
			//alert(ts);
			var t = 0;
			var n = 0;
			var pn = 0; 
			$("ul", obj).css('width',s*w);			
			if(!options.vertical) $("li", obj).css('float','left');
			
			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 += ' <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);										
			};
			
			//hobby add
			var controlnum = "";
			for(i=s;i>=1;i--){
				controlnum +="<span id='controlnum_"+i+"'>"+i+"</span>";
			}
			$("#controlnum").html(controlnum);
			$("#controlnum_1").addClass("on");
			$("#controlnum_1").click(function(){animate(1,true);});
			$("#controlnum_2").click(function(){animate(2,true);});
			$("#controlnum_3").click(function(){animate(3,true);});
			$("#controlnum_4").click(function(){animate(4,true);});
			$("#controlnum_5").click(function(){animate(5,true);});
			
			$("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);				
			});
			$("#"+options.playId).click(function(){
				options.auto = true;
				animate("next",false);
			});
			$("#"+options.pauseId).click(function(){
				options.auto = false;
			});
			
			function animate(dir,clicked){
				options.continuous = true;
				var ot = t;				
				switch(dir){
					case "next":
						if(ot>=ts){
							var temp=$("li#"+$("li", obj)[0].id, obj).clone();
							var list=$("li#"+$("li", obj)[0].id, obj).remove();
							$("ul",obj).append(temp);
							p=((t-1)*w*-1);
							$("ul",obj).css("marginLeft",p);
												
							ot=ot-1;
							t=t-1;
						}
						t = (ot>=ts) ? (options.continuous ? 0 : ts) : t+1;		

						n=(n>=ts?0:n+1);
						pn=(n==0?ts:n-1);
						
						break; 
					case "prev":
						if(t<=0){
							var temp=$("li#"+$("li", obj)[$("li", obj).length-1].id, obj).clone();
							var list=$("li#"+$("li", obj)[$("li", obj).length-1].id, obj).remove();
							$("li:eq(0)",obj).before(temp);
							p=((t+1)*w*-1);
							$("ul",obj).css("marginLeft",p);
												
							ot=ot+1;
							t=t+1;
						}
						
						t = (t<=0) ? (options.continuous ? ts : 0) : t-1;

						n=(n<=0?ts:n-1);
						pn=(n==ts?0:n+1);
						
						break; 
					case "first":
						t = 0;
						break; 
					case "last":
						t = ts;
						break;
					default:
						n=dir-1;
						pn=(n==t?-1:t);
						
						t=dir-1;
						break; 
				};
				//alert(options.continuous);
				$("#controlnum_"+(n+1)).addClass("on");
				$("#controlnum_"+(pn+1)).removeClass("on");
				//$("#controlnum_"+(t+1)).addClass("on");
				//$("#controlnum_"+(ot+1)).removeClass("on");
				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
					);					
				};
				
				if(!options.continuous && options.controlsFade){					
					if(t==ts){
						$("a","#"+options.nextId).find('img')[0].src="/images/slider_left.png";
						//$("a","#"+options.nextId).hide();
						//$("a","#"+options.lastId).hide();
					} else {
						$("a","#"+options.nextId).find('img')[0].src="/images/slider_left.png";
						//$("a","#"+options.nextId).show();
						//$("a","#"+options.lastId).show();					
					};
					if(t==0){
						$("a","#"+options.prevId).find('img')[0].src="/images/slider_right.png";
						//$("a","#"+options.prevId).hide();
						//$("a","#"+options.firstId).hide();
					} else {
						$("a","#"+options.prevId).find('img')[0].src="/images/slider_right.png";
						//$("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){
				$("a","#"+options.prevId).find('img')[0].src="/images/slider_left.png";				
				//$("a","#"+options.prevId).hide();
				//$("a","#"+options.firstId).hide();				
			};				
			
		});
	  
	};

})(jQuery);