javascript - EasySlider1.7 - 如何让第二个 slider 上的箭头起作用？

Question

我想出了如何在其他帖子的页面上放置 2 个 slider 。我遇到的最后一个问题是第二个 slider 上的 Prev & Next 箭头似乎不起作用。

我从最初构建第一个 slider 的其他人那里接手了这个页面，但我根本不精通代码。多年来我一直主要使用 Wordpress。边走边学。

这是页面: GinaKetchum.com

index.html文件中的代码:

<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript" src="js/easySlider1.7.js"></script>
<script type="text/javascript">
		$(document).ready(function(){	
			$("#slider").easySlider({
				auto: true, 
				continuous: true
			});
			$("#slider2").easySlider({
				auto: true, 
				continuous: true
			});
		});	
	</script>

easySlider1.7.js中的代码:

(function($) {

	$.fn.easySlider = function(options){
	  
		// default configuration properties
		var defaults = {			
			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: 			500,
			auto:			false,
			pause:			5000,
			continuous:		false, 
			numeric: 		false,
			numericId: 		'controls'
		}; 
		
		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(w); 
			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.firstShow) html += '<span id="'+ options.firstId +'"><a href=\"javascript:void(0);\">'+ options.firstText +'</a></span>';
					html += ' <span id="'+ options.prevId +'"><a href=\"javascript:void(0);\">'+ options.prevText +'</a></span>';
					html += ' <span id="'+ options.nextId +'"><a href=\"javascript:void(0);\">'+ options.nextText +'</a></span>';
					if(options.lastShow) html += ' <span id="'+ options.lastId +'"><a href=\"javascript:void(0);\">'+ options.lastText +'</a></span>';				
				};
				
				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 {
				$("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;
				$("li", "#" + options.numericId).removeClass("current");
				$("li#" + options.numericId + i).addClass("current");
			};
			
			function adjust(){
				if(t>ts) t=0;		
				if(t<0) t=ts;	
				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) setCurrent(t);
			};
			
			function animate(dir,clicked){
				if (clickable){
					clickable = false;
					var ot = t;				
					switch(dir){
						case "next":
							t = (ot>=ts) ? (options.continuous ? t+1 : ts) : t+1;						
							break; 
						case "prev":
							t = (t<=0) ? (options.continuous ? t-1 : 0) : 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) {
						p = (t*w*-1);
						$("ul",obj).animate(
							{ 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) setCurrent(0);
		
			if(!options.continuous && options.controlsFade){					
				$("a","#"+options.prevId).hide();
				$("a","#"+options.firstId).hide();				
			};				
			
		});
	  
	};

})(jQuery);

CSS文件:

/*Slider*/			

.graphic, #prevBtn, #nextBtn, #slider1prev, #slider1next {
margin:0;
padding:0;
display:block;
overflow:hidden;
text-indent:-8000px;
}
			
.container-slider{
margin:0 auto;
position:relative;
text-align:left;
width:900px;
background:#fff;
}

#slider ul, #slider li,
#slider2 ul, #slider2 li{
margin:0;
padding:0;
list-style:none;
}

#slider2{margin-top:1em;}

#slider li, #slider2 li{	
width:900px;
height:396px;
overflow:hidden;
}	

#prevBtn, #nextBtn,
#slider1next, #slider1prev{
display:block;
width:30px;
height:77px;
position:absolute;
left:-35px;
top:160px;
z-index:1000;
}
	
#nextBtn, #slider1next{
left:905px;
}
														
#prevBtn a, #nextBtn a,
#slider1next a, #slider1prev a{
display:block;
position:relative;
width:29px;
height:51px;
background-image: url(../images/btn_prev2.png);
background-repeat: no-repeat;
background-position: 0 0;
}
	
#nextBtn a, #slider1next a{
background-image: url(../images/btn_next2.png);
background-repeat: no-repeat;
background-position: 0 0;
}		

ol#controls{
margin:1em 0;
padding:0;
height:28px;	
}

ol#controls li{
margin:0 10px 0 0; 
padding:0;
float:left;
list-style:none;
height:28px;
line-height:28px;
}

ol#controls li a{
float:left;
height:28px;
line-height:28px;
border:1px solid #ccc;
background:#DAF3F8;
color:#555;
padding:0 10px;
text-decoration:none;
}
		
ol#controls li.current a{
background:#5DC9E1;
color:#fff;
}

ol#controls li a:focus, #prevBtn a:focus, #nextBtn a:focus{outline:none;}
	
/*Slider*/
 

Answer 1

更改第二个 slider 的上一个/下一个按钮的 id，然后执行如下操作:

$("#slider2").easySlider({
    auto: true,
    continuous: true,
    nextId: "slider1next",
    prevId: "slider1prev"
});