在我的网站http://operationwebdesign.com/index.php上，我有一个 jquery 滑块作为您看到的主要项目。如果您单击按钮切换幻灯片，它会起作用，但由于某种原因，自动运行的代码不起作用。有谁知道可能出了什么问题？
供参考的是当前站点的代码。
头文件.php
<!DOCTYPE html>
<html lang="en">
<head>
<title>Operation Web Design - Quality</title>
<meta charset="utf-8">
<link rel="shortcut icon" href="images/favicon.ico" >
<link type="text/css" href="css/styles-protfolio.css" rel="stylesheet" media="all" />
<link href="css/prettyPhoto.css" rel="stylesheet" type="text/css" />
<link rel="stylesheet" href="css/base.css" type="text/css" media="screen">
<link rel="stylesheet" href="css/reset.css" type="text/css" media="screen">
<link rel="stylesheet" href="css/style.css" type="text/css" media="screen">
<link rel="stylesheet" href="fontkit/stylesheet.css" type="text/css" />
<link rel="stylesheet" type="text/css" href="slider/css/layout.css" />
<link rel="stylesheet" type="text/css" href="slider/css/style4.css" />
<!--Slider -->
<script language="javascript" type="text/javascript" src="slider/js/jquery.js"></script>
<script language="javascript" type="text/javascript" src="slider/js/jquery.easing.js"></script>
<script language="javascript" type="text/javascript" src="slider/js/script.js"></script>
<script type="text/javascript">
$(document).ready( function(){
// buttons for next and previous item
var buttons = { previous:$('#jslidernews1 .button-previous') ,
next:$('#jslidernews1 .button-next') };
$obj = $('#jslidernews1').lofJSidernews( { interval : 4000,
easing : 'easeInOutQuad',
duration : 1200,
auto : false,
maxItemDisplay : 3,
startItem :0,
navPosition : 'horizontal', // horizontal
navigatorHeight : null,
navigatorWidth : null,
mainWidth:960,
buttons:buttons} );
});
</script>
<!--Slider -->
<script type="text/javascript" src="js/jqueryd.js"></script>
<script type="text/javascript" src="js/ui.js"></script>
<script type="text/javascript" src="js/ui_002.js"></script>
<script type="text/javascript" src="js/work.js"></script>
<!--portfolio New-->
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.4/jquery.min.js"></script>
<script src="js/po-new/jquery.quicksand.js" type="text/javascript"></script>
<!-- -->
<script src="js/po-new/jquery.easing.js" type="text/javascript"></script>
<script src="js/po-new/script.js" type="text/javascript"></script>
<!--- -->
<script src="js/po-new/jquery.prettyPhoto.js" type="text/javascript"></script>
<!--[if lt IE 7]>
<div style=' clear: both; text-align:center; position: relative;'>
<a href="http://windows.microsoft.com/en-US/internet-explorer/products/ie/home?ocid=ie6_countdown_bannercode">
<img src="http://storage.ie6countdown.com/assets/100/images/banners/warning_bar_0000_us.jpg" border="0" height="42" width="820" alt="You are using an outdated browser. For a faster, safer browsing experience, upgrade for free today." />
</a>
</div>
<![endif]-->
<!--[if lt IE 9]>
<script type="text/javascript" src="js/html5.js"></script>
<![endif]-->
</head>
<body>
<!--div class="prodSale">
<a href="templates.html"><span>Products for Sale</span></a>
</div-->
<div class="main-coll">
<!--Header -->
<header>
<div class="cent-coll">
<div class="head-post">
<div class="svipl-logo">
<h1 class="logo"><a href="index.php" title="Operation Web Design"><img src="images/logo.png" alt="Operation Web Design"></a></h1>
</div>
<nav class="topnav">
<ul class="nav">
<li><a href="index.php" class="current">HOME<span>OUR MAIN PAGE</span></a></li>
<li><a href="portfolio.php">PORTFOLIO<span>OUR WORK</span></a></li>
<li><a href="about.php">ABOUT US<span>WHO WE ARE</span></a></li>
<li><a href="services.php">SERVICES<span>WHAT WE OFFER</span></a></li>
<li><a href="contact.php">CONTACT US<span>DROP US A LINE</span></a></li>
</ul>
</nav>
<div class="social">
<a href="#" class="fbook">Facebook</a>
<a href="#" class="twitter">Twitter</a>
<a href="#" class="linkin">LinkedIn</a>
<a href="#" class="blog">Blog</a>
</div>
</div>
</div>
</header>
<!--Header -->
索引.php
<?php
require('header.php');
?>
<!--Slider -->
<div class="info-head">
<div class="info-bg">
<div class="cent-coll">
<div class="intro-mn">
<div id="jslidernews1" class="lof-slidecontent" style="width:960px; height:315px;">
<div class="preload"><div></div></div>
<!--
<div class="button-previous">Previous</div>
<div class="button-next">Next</div>
-->
<!-- MAIN CONTENT -->
<div class="main-slider-content" style="width:960px; height:340px;">
<ul class="sliders-wrap-inner">
<li>
<img src="images/slide1-img.png" title="Newsflash 1" />
<div class="slide-dtl">
<h2>HELLO & WELCOME</h2>
<p>Need a website? Need help with internet marketing?<br>
We specialize in creating quality websites and effective<br>
internet Marketing for every business.
</p>
<div class="btn-coll">
<a href="contact.php" class="lmore blackgred"><span>Learn More</span></a>
<a href="contact.php" class="contoday">Contact us Today!</a>
</div>
</div>
</li>
<li>
<img src="images/html5-css3.png" title="Newsflash 2" />
<div class="slide-dtl">
<h2>HTML5 & CSS3</h2>
<p>All of our sites are HTML 5 and CSS 3 Compliant.<br/>
This ensures our sites work on all the popular browsers: <br/>
Mozilla Firefox, Internet Explorer, Safari, Google Chrome!
</p>
<div class="btn-coll">
<a href="contact.php" class="lmore blackgred"><span>Learn More</span></a>
</div>
</div>
</li>
<li>
<img src="images/mobile-app.png" title="Newsflash 3" />
<div class="slide-dtl">
<h2>MOBILE APPS & WEB</h2>
<p>Need a mobile app for your website or business?<br>
We can make it for you. Android® or iPhone® Platforms.<br>
We can make mobile friendly versions of your site too!
</p>
<div class="btn-coll">
<a href="contact.php" class="lmore blackgred"><span>Learn More</span></a>
</div>
</div>
</li>
<li>
<img src="images/seo-img.png" title="Newsflash 4" />
<div class="slide-dtl">
<h2>SEO</h2>
<p>Need more traffic for your website?<br>
We can get you to the top of the Search Engines<br>
Google, Yahoo, Bing, you name it!
</p>
<div class="btn-coll">
<a href="contact.php" class="lmore blackgred"><span>Learn More</span></a>
</div>
</div>
</li>
<li>
<img src="images/web-design-dev.png" title="Newsflash 5" />
<div class="slide-dtl">
<h2>WEB DESIGN</h2>
<p>Need a productive website for your business?<br>
Want a design that brings you more clients?<br>
We design to deliver you results!
</p>
<div class="btn-coll">
<a href="contact.php" class="lmore blackgred"><span>Learn More</span></a>
</div>
</div>
</li>
</ul>
</div>
<!-- END MAIN CONTENT -->
<!-- NAVIGATOR -->
<div class="navigator-content">
<!--<div class="button-control"><span></span></div> -->
<div class="navigator-wrapper">
<ul class="navigator-wrap-inner">
<li><span>1</span></li>
<li><span>2</span></li>
<li><span>3</span></li>
<li><span>4</span></li>
<li><span>5</span></li>
</ul>
</div>
</div>
<!----------------- END OF NAVIGATOR --------------------->
</div>
</div>
</div>
</div>
</div>
<!--Slider -->
<!--Content Part -->
<div class="main-coll">
<div class="cent-coll">
<section class="page-coll">
<h3 class="wlcm-txt">
<span>Operation Web Design</span> helps busy entrepreneurs save time by getting customers so they can focus on making money in their business. How do we do this?<br/><br/> Check out our <a href="portfolio.php">work</a> or <a href="contact.php">drop us a line</a>.
</h3>
<div class="latest-work">
<article class="work-first">
<h2 class="section-title whi">OUR LATEST CLIENT</h2>
<p>Team Crowd Fund specializes in helping its clients raise money they need for their business/idea through crowd funding platforms, like Kickstarter or Indiegogo.</p>
<a href="http://teamcrowdfund.com" class="more blackgred" target="_blank"><span>Visit Page</span></a>
</article>
<ul style="" id="all" class="workThumbs ui-tabs-panel ui-widget-content ui-corner-bottom">
<div style="text-align:left;padding-left:25px;"><b>Other Clients:</b></div>
<li>
<a href="#"><img style="opacity: 1;" src="images/pro-img/thumb.jpg" alt="XXXLutx"></a>
<h4>Clickr</h4>
<p>Create Your Pictures Album</p>
</li>
<li>
<a href="#"><img style="opacity: 1;" src="images/pro-img/thumb9.jpg" alt="Saybets"></a>
<h4>Pernel Berkeley</h4>
<p>A Creative Artist</p>
</li>
<li>
<a href="#"><img style="opacity: 1;" src="images/pro-img/thumb19.jpg" alt="Maxxo"></a>
<h4>Logo Producers</h4>
<p>Social networking</p>
</li>
</ul>
</div>
</section>
</div>
<div class="services_bg">
<div class="cent-coll">
<section class="page-coll">
<aside class="box3_main">
<h2 class="section-title">SERVICES</h2>
<div class="main-coll">
<article class="services-cell">
<div class="services-img">
<img src="images/webdesign-icon.png" alt="" />
</div>
<div class="services-detail">
<h3>Web Design & Development</h3>
<p>Web Design & Development is the most important aspect to an online campaign. We create beautiful <strong>website designs</strong> that engages customers and grows businesses.</p>
<a href="#" class="readmore">Learn More →</a>
</div>
</article>
<article class="services-cell mL20">
<div class="services-img">
<img src="images/ecommerce-icon.png" alt="" />
</div>
<div class="services-detail">
<h3>eCommerce Websites</h3>
<p>Want to sell your products online? Our <strong>eCommerce websites</strong> are crafted to meet your business requirements. Sell anything and everything, no limits just your imagination.</p>
<a href="#" class="readmore">Learn More →</a>
</div>
</article>
<article class="services-cell mL20">
<div class="services-img">
<img src="images/mobile-application-icon.png" alt="" />
</div>
<div class="services-detail">
<h3>Mobile Websites</h3>
<p>Customers are in a rush to find your business and mobile devices provide the answer. We create sites that work on all the mobile devices such as Android® & iPhone®.</p>
<a href="#" class="readmore">Learn More →</a>
</div>
</article>
</div>
</aside>
<ul class="technologies">
<li><img src="images/symphony-logo.png" alt="" /></li>
<li><img src="images/php-logo.png" alt="" /></li>
<li><img src="images/mysql-logo.png" alt="" /></li>
<li><img src="images/jquery-logo.png" alt="" /></li>
<li><img src="images/java-logo.png" alt="" /></li>
<li><img src="images/xml-logo.png" alt="" /></li>
<li><img src="images/androiod-logo.png" alt="" /></li>
<li><img src="images/wordpress-logo.png" alt="" /></li>
</ul>
</section>
</div>
<div class="crossline1"></div>
</div>
<div class="cent-coll">
<section class="page-coll">
<article class="main-coll">
<h2 class="about-head"><span>ABOUT </span> Operation Web Design</h2>
<p class="about-dtl">Operation Web Design specializes in the business of providing Software Outsourcing & Offshore Software Development services to its clients globally. Our solid technical expertise, profound knowledge of latest industry trends, Customer needs and quality-driven delivery model offer progressive end-to-end web solutions.</p>
<p class="about-dtl">Our services include: Professional Web Design, SEO, ECommerce Solution, Web Application Development & Maintaining, Web-Hosting, Logo Design & Flash Websites.</p>
<div class="btn-cell">
<a href="#" class="lmore blackgred"><span>Learn More</span></a>
</div>
</article>
</section>
</div>
</div>
</div>
<!--Content Part -->
<?php
require('footer.php');
?>
非常感谢任何帮助，我不知道为什么它不起作用。