/*
 * 	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){

		var defaults = {	
			speed: 			600,
			pause:			6000,
			auto:			true,
			continuous:		true
		}; 
		
		var options = $.extend(defaults, options);  
				
		this.each(function() {  
			
			var obj = $(this); 				
			var s = $("li", obj).length;
			var w = ($("li", obj).width() + 28); 
			var h = $("li", obj).height(); 
			var clickable = true;
			var ts = s-1;
			var t = 0;
			
			$("ul", obj).css('width', s*w);			
			
			function adjust() {
								
				if ((s-t) == 2) t = 0;
				clickable = true;
				
			};
			
			function animate(dir, clicked) {
				
				if (clickable) {
					
					clickable = false;
					var ot = t;				
					
					switch(dir) {
						
						case "next":
							t = t+1;						
							break;
					
					};	
					
					var diff = Math.abs(ot-t);
					var speed = diff*options.speed;						
					
					p = (t*w*-1);
					
					if ((s-t) == 2) {
						
						$("ul",obj).animate(
							{ marginLeft: -5 }, 
							{ queue:false, duration:speed, complete:adjust }
						);
						
					} else {
						
						$("ul",obj).animate(
							{ marginLeft: p }, 
							{ queue:false, duration:speed, complete:adjust }
						);
						
					}							
															
					if (clicked) clearTimeout(timeout);
					
					if (options.auto && dir=="next" && !clicked) {
						timeout = setTimeout(function(){
							animate("next", false);
						},diff*options.speed+options.pause);
					};
				};	
			};
			
			var timeout;
			
			timeout = setTimeout(function(){animate("next", false);}, options.pause);

		});
	};

})(jQuery);