/*
 * 	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: 		'prevBtn',
			prevText: 		'Previous',
			nextId: 		'nextBtn',	
			nextText: 		'Next',
			orientation:	'', //  'vertical' is optional;
			speed: 			800			
		}; 
		
		var options = $.extend(defaults, options);  
		
		return this.each(function() {  
		    
			obj = $("#slider");
			icon_obj= $(this)
			var s = $("li", icon_obj).length;//click
			var w = obj.width(); //slider
			var h = obj.height(); //slider
			var ts = s-1;
			var t = 0;
			var n = 0;
			var vertical = (options.orientation == 'vertical');
			$("ul", obj).css('width',s*w);//slider			
			
			if(!vertical) $("li", obj).css('float','left');//slider
			
			/*-----------------------------------------------------------
			$(obj).after('<span id="'+ options.prevId +'"><a href=\"javascript:void(0);\">'+ options.prevText +'</a></span> <span id="'+ options.nextId +'"><a href=\"javascript:void(0);\">'+ options.nextText +'</a></span>');		
			//slider
			$("a","#"+options.prevId).hide();
			$("a","#"+options.nextId).hide();
			
			-----------------------------------------------------------*/
			$("a","#"+options.nextId).click(function(){
			    //t = (t>=ts) ? ts : t+1;	
				animate("next");
				if (t>=ts) $(this).fadeOut();
				$("a","#"+options.prevId).fadeIn();
			});
			$("a","#"+options.prevId).click(function(){		
			    //t = (t<=0) ? 0 : t-1;
				animate("prev");
				if (t<=0) $(this).fadeOut();
				$("a","#"+options.nextId).fadeIn();
			});				
			$("#slide1").click(function (e){
		        animation("1");		        
		        if (t<=0) $("#prevBtn").fadeOut();
				$("a","#"+options.nextId).fadeIn();
				
		    });		    
		    $("#slide2").click(function (e){
		        animation("2");		        
		        			
		    });
		    $("#slide3").click(function (e){
		        animation("3");		        
		        
		    });
		    $("#slide4").click(function (e){
		        animation("4");		        
		        
		    });
		    $("#slide5").click(function (e){
		        animation("5");		        
		        
		    });
		    $("#slide6").click(function (e){
		        animation("6");		        
		        
		    });
		    $("#slide7").click(function (e){
		        animation("7");		        
		        
		    });
		    $("#slide8").click(function (e){
		        animation("8");		        
		        if (t>=ts) $("#nextBtn").fadeOut();
				$("a","#"+options.prevId).fadeIn();
		        
		    });
			/*-----------------------------------------------------------*/
			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","#slider").animate(
						{ marginLeft: p }, 
						options.speed
					);				
				} else {
					p = (t*h*-1);
					$("ul","#slider").animate(
						{ marginTop: p }, 
						options.speed
					);					
				}
			};
			
			/*-----------------------------------------------------------*/
			function animation(goTo){
			    			
				t=goTo-1;
			    var imgID;
			    var imgSrc;
				if(!vertical) {
					p = (t*w*-1);
					$("ul","#slider").animate(
						{ marginLeft: p }, 
						options.speed
					);
				
					for(var i=1; i<=8;i++)
			        {
			            imgID= "icon"+i;
			            var imgSrc ="images/"+ imgID+".png";
			            imgID="#"+imgID;
			            $(imgID).attr({ src: imgSrc, alt: "" });
			        }
					imgID = "icon"+ goTo;
                    imgSrc ="images/"+ imgID +"_curr.png";
                    imgID="#" + imgID;
                    $(imgID).attr({ src: imgSrc, alt: "" });
					
				} else {
					p = (t*h*-1);
					$("ul","#slider").animate(
						{ marginTop: p }, 
						options.speed
					);
										
				}
				
			};
			
			
			if(s>1) $("a","#"+options.nextId).fadeIn();	
		});
	  
	};

})(jQuery);