/*
 * 	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 = $(this); 				
			var s = $("li", obj).length;
			var w = 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');
			
				if(options.prevId == 'prevFoto' && options.nextId == 'nextFoto') {
					
					$(obj).after('<div style="width:193px; margin-top:12px; float:left;"><div style="margin:0 auto; width:108px; height:34px;"><div style="float:left;" class="'+ options.prevId +'"><a href=\"javascript:void(0);\"><img src="img/freccina_dettagli_sx.gif" alt="Prev" border="0" /></a></div ><div style="float:left; width:70px; text-align:center; margin-top:2px; color:#6385a1; font-size:13px; font-style:italic;" id="contatore">'+currentPagina+' di '+totPagine+'</div><div style="float:left;" class="'+ options.nextId +'"><a href=\"javascript:void(0);\"><img src="img/freccina_dettagli_dx.gif" alt="Next" border="0" /></a></div ></div></div>');		
					
					} else {
				
					$(obj).after('<div style="margin:0 auto; margin-top:50px; width:188px; height:34px;"><div style="float:left;" class="'+ options.prevId +'"><a href=\"javascript:void(0);\"><img src="img/prevbtn.gif" alt="Prev" border="0" /></a></div ><div style="float:left; width:70px; text-align:center; margin-top:8px;" id="contatore">'+currentPagina+' di '+totPagine+'</div><div style="float:left;" class="'+ options.nextId +'"><a href=\"javascript:void(0);\"><img src="img/nextbtn.gif" alt="Next" border="0" /></a></div ></div>');
				
					}
				
			if(currentPagina == totPagine){
              	
				$("a","."+options.prevId).hide();
				$("a","."+options.nextId).hide();            
				
				$("#contatore").hide();    
				
				}
				
			
			$("a","."+options.nextId).click(function(){	
            
            
            if(currentPagina < totPagine){
                currentPagina = currentPagina + 1;
              
                var str = currentPagina+' di '+totPagine;                

				}
        
             $("#contatore").html(str);
			//$("#contatore_bottom").html(str);
           // alert(options.nextId);	
				animate("next");
				//if (t>=ts) $(this).fadeOut();
				$("a","."+options.prevId).fadeIn();
			});
			$("a","."+options.prevId).click(function(){		
                
                if(currentPagina > 1){
                    currentPagina = currentPagina - 1;
                    var str = currentPagina+' di '+totPagine;
                }
               
               $("#contatore").html(str);
				//$("#contatore_bottom").html(str);
				animate("prev");
				//if (t<=0) $(this).fadeOut();
				$("a","."+options.nextId).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",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);