/*
 * 	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
 *
 * 	Easy Slider 1.75 - jQuery plugin
 *	updated by Justin Carroll	
 *	http://www.3circlestudio.com/
 *
 *	Added option "allControls" to show both next/previous/first/last and
 *  numeric paging all at once
 *
 */
 
/*
 *	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){
	  
		// default configuration properties
		var defaults = {
			nightId:        'nightIcon',
			pauseId:		'pauseBtn',
			prevId: 		'prevBtn',
			prevText: 		'Previous',
			nextId: 		'nextBtn',	
			nextText: 		'Next',
			controlsShow:	true,
			controlsBefore:	'',
			controlsAfter:	'',	
			controlsFade:	true,
			firstId: 		'firstBtn',
			firstText: 		'First',
			firstShow:		false,
			lastId: 		'lastBtn',	
			lastText: 		'Last',
			lastShow:		false,				
			vertical:		false,
			speed: 			800,
			fade_speed:   	3000,
			auto:			false,
			pause:			6000,
			continuous:		false, 
			numeric: 		false,
			numericId: 		'controls',
			allControls:	false
		}; 
		
		var options = $.extend(defaults, options);  
				
		this.each(function() {
			
			var obj = $(this); 				
			var s = $("li", obj).length;
			var w = $("li", obj).width(); 
			var h = $("li", obj).height(); 
			var clickable = true;
			obj.width(998); 
			obj.height(h); 
			obj.css("overflow","hidden");
			var ts = s-1;
			var t = 0;
			$("ul", obj).css('width',s*w);			
			if(options.continuous){
				$("ul", obj).prepend($("ul li:last-child", obj).clone().css("margin-left","-"+ w +"px"));
				$("ul", obj).append($("ul li:nth-child(2)", obj).clone());
				$("ul", obj).css('width',(s+1)*w);
			};				
			
			if(!options.vertical) $("li", obj).css('float','left');
								
			if(options.controlsShow){
				var html = options.controlsBefore;				
				if(options.numeric){
					html += '<ol id="'+ options.numericId +'"></ol>';
				} else if (options.allControls) {
					html += '<ul id="' + options.numericId + '">';
					if(options.firstShow) html += '<li id="'+ options.firstId +'"><a href=\"javascript:void(0);\">'+ options.firstText +'</a></li>';
					html += ' <li id=\"night\" style=\"float:left;\" class="'+ options.nightId +'"><a href=\"javascript:void(0);\"></a></li>';
					html += ' <li id=\"playPause\" style=\"float:left;\" class="'+ options.pauseId +'"><a href=\"javascript:void(0);\"></a></li>';
					html += ' <li id="'+ options.prevId +'"><a href=\"javascript:void(0);\">'+ options.prevText +'</a></li>';
					html += ' <li id="'+ options.nextId +'"><a href=\"javascript:void(0);\" style=\"margin-left:2px;\">'+ options.nextText +'</a></li>';
					if(options.lastShow) html += ' <span id="'+ options.lastId +'"><a href=\"javascript:void(0);\">'+ options.lastText +'</a></li>';
					html += '</ul>';				
				} else {
					html += '<ul id="' + options.numericId + '">';
					if(options.firstShow) html += '<li id="'+ options.firstId +'"><a href=\"javascript:void(0);\">'+ options.firstText +'</a></li>';
					html += ' <li id="'+ options.prevId +'"><a href=\"javascript:void(0);\">'+ options.prevText +'</a></li>';
					html += ' <li id="'+ options.nextId +'"><a href=\"javascript:void(0);\">'+ options.nextText +'</a></li>';
					if(options.lastShow) html += ' <li id="'+ options.lastId +'"><a href=\"javascript:void(0);\">'+ options.lastText +'</a></li>';	
					html += '</ul>';				
				};
				
				html += options.controlsAfter;						
				$(obj).after(html);										
			};
			
			if(options.numeric){									
				for(var i=0;i<s;i++){						
					$(document.createElement("li"))
						.attr('id',options.numericId + (i+1))
						.html('<a rel='+ i +' href=\"javascript:void(0);\">'+ (i+1) +'</a>')
						.appendTo($("#"+ options.numericId))
						.click(function(){							
							animate($("a",$(this)).attr('rel'),true);
						}); 												
				};
			} else if (options.allControls) {
				for(var i=0;i<s;i++){	
					if(i==0 || i==2 || i==3 || i==5 || i==6)
					{
						$(document.createElement("li"))
							.attr('id',options.numericId + (i+1))
							.attr('class', 'numeric')
							.html('<a rel='+ i +' href=\"javascript:void(0);\"></a>')
							.insertBefore($("#"+ options.nextId))
							.click(function(){							
								animate($("a",$(this)).attr('rel'),true);
							}); 												
					}
				};
				$("a","#"+options.nextId).click(function(){		
					animate("next",true);
				});
				$("a","#"+options.prevId).click(function(){		
					animate("prev",true);				
				});	
				jQuery("#playPause").toggle(function(ev) {
						
						jQuery("#playPause").toggleClass('playBtn');
						animate("pause","one");	
						
					}, function (){
						
							jQuery("#playPause").toggleClass('playBtn');
							animate("pause","two");
					});		
				jQuery("#night").click(function(){
					if(t==0 || t==3 || t==6)
					{
						animate("dayNight","night");	
					}
					if(t==1 || t==4 || t==7)
					{
						animate("dayNight","day");	
					}
				});
				$("a","#"+options.firstId).click(function(){		
					animate("first",true);
				});				
				$("a","#"+options.lastId).click(function(){		
					animate("last",true);				
				});				
			} else {
				$("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);				
				});				
			};
			function setCurrent(i){
				i = parseInt(i)+1;
			    if(i==1 || i==3 || i==4 || i==6 || i==7)
				{
					$('li', "#" + options.numericId).removeClass("current");
					$('li#' + options.numericId + i).addClass("current");
				}
			};

			function adjust(){
			/*	alert(dir);*/
				if(t>ts) t=0;		
				if(t<0) t=ts;	
				$("ul",obj).animate({opacity: 1});
				if(!options.vertical) {
					$("ul",obj).css("margin-left",(t*w*-1));
				} else {
					$("ul",obj).css("margin-left",(t*h*-1));
				}
				clickable = true;
				if(options.numeric || options.allControls) setCurrent(t);
			};
			
			function animate(dir,clicked){
				if (clickable){
					clickable = false;
					var ot = t;				
					switch(dir){
						case "next":
							t = (ot>=ts) ? (options.continuous ? parseInt(t)+1 : ts) : parseInt(t)+1;						
							break; 
						case "prev":
							t = (t<=0) ? (options.continuous ? t-1 : 0) : t-1;
							break; 
						case "pause":
							if(clicked=="one")
							{
								options.auto = false;
							}			
							
							if(clicked=="two")
							{
								options.auto = true;
								dir = "next";
								clicked = false;		
							}					
						
							break;
						case "dayNight":
							if(clicked == 'night')
							{
								t = parseInt(t)+1;		
							}
							if(clicked == 'day')
							{
								t = t-1;	
							}
							break;
						case "first":
							t = 0;
							break; 
						case "last":
							t = ts;
							break; 
						default:
							t = dir;
							break; 
					};	
					var diff = Math.abs(ot-t);
					var speed = diff*options.speed;						
					if(!options.vertical) {
						/*alert(options.numericId);				*/
						if(t==0)
						{
							$('#night').show();
							$('#night').removeClass('dayIcon');
							$('#night').addClass('nightIcon');
							p = (t*w*-1);
							speed=100;
							$("ul",obj).animate(
							{ opacity:.8}, 
							{ queue:false, duration:speed, complete:adjust });								

							
						}
						else if(t==1 || t==4 || t==7)
						{
							$('#night').show();
							$('#night').removeClass('nightIcon');
							$('#night').addClass('dayIcon');
							if(dir=='prev')
							{
								$('li', "#" + options.numericId).removeClass("current");
								$('li#' + options.numericId + t).addClass("current");
								p = (t*w*-1);
								$("ul",obj).animate(
								{ opacity:1, marginLeft: p }, 
								{ queue:false, duration:speed, complete:adjust });
							}
							else{
								speed=100;
								
								$("ul",obj).animate(
									{ opacity: .8 }, 
									{ queue:false, duration:speed, complete:adjust }
								);	
							}
						}
						else
						{
							if(t==3 || t==6 || t==8)
							{
								$('#night').show();
								$('#night').removeClass('dayIcon');
								$('#night').addClass('nightIcon');
								if(dir=='next')
								{
									p = (t*w*-1);
									$("ul",obj).animate(
									{ opacity:1, marginLeft: p }, 
									{ queue:false, duration:speed, complete:adjust });
								}
								else
								{
									speed=100;
									$("ul",obj).animate(
									{ opacity:.8}, 
									{ queue:false, duration:speed, complete:adjust });		
								}
							}
							else
							{
								if(t==-1)
								{
									$('#night').show();
									$('#night').removeClass('nightIcon');
									$('#night').addClass('dayIcon');
									$('li', "#" + options.numericId).removeClass("current");
									$('li#' + options.numericId + 7).addClass("current");
								}
								else
								{
									$('#night').hide();
								}
								p = (t*w*-1);
								$("ul",obj).animate(
								{ opacity:1, marginLeft: p }, 
								{ queue:false, duration:speed, complete:adjust });
							}
							
		
										
						}
					} else {
						p = (t*h*-1);
						$("ul",obj).animate(
							{ marginTop: p }, 
							{ queue:false, duration:speed, complete:adjust }
						);					
					};
					
					if(!options.continuous && options.controlsFade){					
						if(t==ts){
							$("a","#"+options.nextId).hide();
							$("a","#"+options.lastId).hide();
						} else {
							$("a","#"+options.nextId).show();
							$("a","#"+options.lastId).show();					
						};
						if(t==0){
							$("a","#"+options.prevId).hide();
							$("a","#"+options.firstId).hide();
						} else {
							$("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.numeric || options.allControls) setCurrent(0);
		
			if(!options.continuous && options.controlsFade){					
				$("a","#"+options.prevId).hide();
				$("a","#"+options.firstId).hide();				
			};				
			
		});
	  
	};
	

})(jQuery);