/*
 * 	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
 *
 */


(function($) {

	$.fn.easySlider = function(options){
	  
		// default configuration properties
		var defaults = {
			prevId: 		'prevBtn',
			prevText: 		'',
			nextId: 		'nextBtn',	
			nextText: 		'',
			orientation:	'', //  'vertical' is optional;
			speed: 			800,
			objects:		3,
			currentItem:	0
		}; 
		
		var options = $.extend(defaults, options);  
		
		return this.each(function() {  
			obj = $(this); 				
			var s = $("li", obj).length;
			var w = (obj.width() / options.objects); 
			var w = 162;
			var h = obj.height(); 
			var ts = s-options.objects;
			var t = options.currentItem;
			var vertical = (options.orientation == 'vertical');
			$("ul", obj).css('width',s*w);
			if(!vertical) $("li", obj).css('float','left');
			$(obj).before('<a href=\"javascript:void(0);\" id="'+ options.prevId +'">'+ options.prevText +'</a>');		
			$(obj).after('<a href=\"javascript:void(0);\" id="'+ options.nextId +'">'+ options.nextText +'</a>');		
			//$("#"+options.prevId).hide();
			//$("#"+options.nextId).hide();
			
			p = (t*w*-1);
			$("ul",obj).css("margin-left",p);
			$("#"+options.nextId).bind("click",{objectId:obj.attr("id")},function(event){
				animate("next",event.data.objectId);
				//if (t>=ts) $(this).fadeOut();
				//$("#"+options.prevId).fadeIn();
			});
			$("#"+options.prevId).bind("click",{objectId:obj.attr("id")},function(event){
				animate("prev",event.data.objectId);
				//if (t<=0) $(this).fadeOut();
				//$("#"+options.nextId).fadeIn();
			});	
			function animate(dir,containerId){
				obj = $("#"+containerId);
				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) $("#"+options.nextId).fadeIn();	
			if(t>0) $("#"+options.prevId).fadeIn();	
		});
	  
	};

})(jQuery);