/*
 * 	Easy Slider - jQuery plugin
 *	written by Alen Grakalic	
 *	http://cssglobe.com/post/3783/jquery-plugin-easy-image-or-content-slider
 *
 *	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 $("#images").easySlider();
 *	
 * 	<div id="images">
 *		<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',
			orientation:	'', //  'vertical' is optional;
			speed: 			1700
		}; 
		
		var options = $.extend(defaults, options);  
		
		return this.each(function() {  
			obj = $(this); 				
			var s = $("li", obj).length;
			var w = $("li", obj).width();
			var h = obj.height(); 
			var ts = s-1;
			var t = 0;
			var vertical = (options.orientation == 'vertical');
			$("ul", obj).css('width',s*w);			
			if(!vertical) $("li", obj).css('float','left');
			$(obj).after('<span id="auto" style="display: none;"><a href=\"javascript:void(0);\" class="auto">auto</a></span>');

			$("#auto").click(function(){
         if ($("#showcase").is(":not(:animated)")) {
            if (t>=ts) {
					stop();    
					restart();
					//$("a","#"+options.prevId).fadeIn();
				} else {
               animate("next", options.speed);
				}
			}
			});

			$("#"+options.nextId).click(function(){
         if ($("#showcase").is(":not(:animated)")) {
				stop();
				animate("next", 400);
            if (t>=ts) {
					restart();
					//$("a","#"+options.prevId).fadeIn();
				} else {
					start();
				}
			}
			});

			$("#"+options.prevId).click(function(){
         if ($("#showcase").is(":not(:animated)")) {
				stop();
				animate("prev", 400);
				start();
				//if (t<=0) $(this).fadeOut();
			}
			});

    	 var restart = (function(){
         if ($("#showcase").is(":not(:animated)")) {
               stop();
               t = 0;
					p = 0;
					$("ul",obj).animate(
						{ left: p },
						options.speed
					);
					start();
}
			});
			function animate(dir, speed){
				if(dir == "next"){
					t = (t>=ts) ? ts : t+1;	
				} else {
					t = (t<=0) ? 0 : t-1;
				};								
				if(!vertical) {
					p = (t*w*-1);
					$("ul",obj).animate(
						{ left: p },
						speed
					);				
				} else {
					p = (t*h*-1);
					$("ul",obj).animate(
						{ marginTop: p }, 
						speed
					);					
				}
			};
			if(s>1) $("#"+options.nextId).fadeIn();
		});
	};

			start = function() {
				timerabc = setInterval(function() { $("#auto").click() }, 2500)
			};

			stop = function() {
				clearInterval(timerabc);
			};

			start();

})(jQuery);