/*
 * 	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
 *
 *	Modified by Konsultfirman Foobar (David Villa)
 *	www.k-foobar.se / info@k-foobar.se
 *	2010.08.15
 *
 *
 */

(function($) {

	$.fn.easySlider = function(options){
	  
		// default configuration properties
		var defaults = {
			prevId: 		'prevBtn',
			prevText: 		'<img src="0_img/arrow_l.png" />',
			nextId: 		'nextBtn',	
			nextText: 		'<img src="0_img/arrow_r.png" />',
			orientation:	'vertical', //  'vertical' is optional;
			speed: 			500			
		}; 
		
		var options = $.extend(defaults, options);  
		
		return this.each(function() {  
			obj = $(this); 				
			var s = 4;
			var w = 800; 
			var h = 300; 
			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="prevBtn"><a href=\"javascript:void(0);\"><img src="0_img/arrow_l.png" class="linkNoBorder" /></a></span><span id="nextBtn"><a href=\"javascript:void(0);\"><img src="0_img/arrow_r.png" /></a></span>');		
			
			$('#nextHide').hide(1);
			$('#prevHide').show(1);
			$('#prevBtn').fadeTo(1, 0.33);

			$("a","#"+options.nextId).click(function(){		
				animate("next");

				if (t>=ts) $('#nextBtn').fadeTo("fast", 0.33);
				if (t>=ts) $('#nextHide').show(1);

				$('#prevBtn').fadeTo("fast", 1);
				$('#prevHide').hide(1);
			});
			
			$("a","#"+options.prevId).click(function(){		
				animate("prev");

				if (t<=0) $('#prevBtn').fadeTo("fast", 0.33);
				if (t<=0) $('#prevHide').show(1);

				$('#nextBtn').fadeTo("fast", 1);
				$('#nextHide').hide(1);
			});	
			
			function animate(dir){
				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(
						{ marginLeft: p }, 
						options.speed
					);				
				} else {
					p = (t*h*-1);
					$("ul",obj).animate(
						{ marginTop: p }, 
						options.speed
					);					
				}
			};
			//if(s>1) $("a","#"+options.nextId).fadeIn();	
		});
	  
	};

})(jQuery);