jQuery / javascript覆盖我的php条件

I'm working on my assignment for my introductory class into php and my conditional all appear to be working as I hoped with the exception of the background conditional which I think is being overridden by the bg.js script.

My goal is that depending on the day of the week, a different background will display based on that day as the 'default' background. However the same background always appears regardless of the day - i have a different little poster that displays depending on the day of the week and that is working correctly. Hopefully someone can help me to solve this - I like how the effects and everything in this template work and it will work well for my overall class in php I think - but i'd like to get it working exactly as I'd hoped.

So to clearly define the problem: the background image at first load always displays as 'image/bg_img01.jpg'. As I envisioned the project, today at first load, the background image ought to be Tuesday's image which is 'image/bg_img03.jpg'. I think i have a javascript conflict that is pugging the other image image in - i've looked at the JS but haven't been able to figure out how to correct it.

URL to BG.js Script (Which I think is the culprit)

SITE/URL a3_Dates-Conditionals

<?php
/*
 *  a3_Dates-Conditionals.php
 *
 *  Create a page with the following functionality:
 *  Use PHP to deliver a different image and bit of content
 *  for each weekday (Sunday to Saturday) using one PHP file.
 *
 *  STAGE1 - Build it static (check)
 *  STAGE2 - build with variables (test, check)
 *  STAGE3 - Build with conditionals
 */

//http://us1.php.net/manual/en/function.date.php
$today = date("D, M j");

$test = "text";
//http://www.php.net/manual/en/control-structures.switch.php
$strSun = ' ';
$strMon = ' ';
$strTues = ' ';
$strWeds = ' ';
$strThurs = ' ';
$strFri = ' ';
$strSat = ' ';

$linkSun = 'bg_img01.jpg';
$linkMon = 'bg_img02.jpg';
$linkTues = 'bg_img03.jpg';
$linkWeds = 'bg_img04.jpg';
$linkThurs = 'bg_img05.jpg';
$linkFri = 'bg_img06.jpg';
$linkSat = 'bg_img07.jpg';

$linkPoster = '';

switch (date('N')) {
case 0:
    $strSun = 'class="current"';
    $todayIs = 'Sunday';
    $linkSun = "bg_imgSpecial.jpg";
    $linkPoster = 'img_poster-01.jpg';
    break;
case 1:
    $strMon = 'class="current"';
    $todayIs = 'Monday';
    $linkMon = "bg_imgSpecial.jpg";
    $linkPoster = 'img_poster-02.jpg';
    break;
case 2:
    $strTues = 'class="current"';
    $todayIs = 'Tuesday';
    $linkTues = "bg_imgSpecial.jpg";
    $linkPoster = 'img_poster-03.jpg';
    break;
case 3:
    $strWeds = 'class="current"';
    $todayIs = 'New Comic book Day!';
    $linkWeds = "bg_imgComicBooks.jpg";
    $linkPoster = 'img_poster-04.jpg';
    break;
case 4:
    $strThurs = 'class="current"';
    $todayIs = 'Thursday';
    $linkThurs = "bg_imgSpecial.jpg";
    $linkPoster = 'img_poster-05.jpg';
    break;
case 5:
    $strFri = 'class="current"';
    $todayIs = 'Friday';
    $linkFri = "bg_imgSpecial.jpg";
    $linkPoster = 'img_poster-06.jpg';
    break;
case 6:
    $strSat = 'class="current"';
    $todayIs = 'Saturday';
    $linkSat = "bg_imgSpecial.jpg";
    $linkPoster = 'img_poster-07.jpg';
    break;
 }

?>

<!DOCTYPE html>
<html lang="en">
<head>
    <title>a3 | itc240 (w14)</title>
    <meta charset="utf-8">
    <link rel="stylesheet" href="css/reset.css" type="text/css" media="all">
    <link rel="stylesheet" href="css/layout.css" type="text/css" media="all">
    <link rel="stylesheet" href="css/prettyPhoto.css" type="text/css" media="all">
    <link rel="stylesheet" href="css/style.css" type="text/css" media="all">
    <script type="text/javascript" src="js/jquery-1.6.js" ></script>
    <script type="text/javascript" src="js/cufon-yui.js"></script>
    <script type="text/javascript" src="js/cufon-replace.js"></script>
    <script type="text/javascript" src="js/Ubuntu_400.font.js"></script>
    <script type="text/javascript" src="js/Ubuntu_700.font.js"></script>
    <script type="text/javascript" src="js/bgSlider.js" ></script>
    <script type="text/javascript" src="js/script.js" ></script>
    <script type="text/javascript" src="js/pages.js"></script>
    <script type="text/javascript" src="js/jquery.easing.1.3.js"></script>
    <script type="text/javascript" src="js/bg.js" ></script>
    <script type="text/javascript" src="js/tabs.js"></script>
    <script type="text/javascript" src="js/jquery.prettyPhoto.js"></script>
    <!--[if lt IE 9]>
        <script type="text/javascript" src="js/html5.js"></script>
    <![endif]-->
    <!--[if lt IE 7]>
        <div style='clear:both;text-align:center;position:relative'>
            <a href="http://www.microsoft.com/windows/internet-explorer/default.aspx?ocid=ie6_countdown_bannercode"><img src="http://storage.ie6countdown.com/assets/100/images/banners/warning_bar_0000_us.jpg" border="0"  alt="" /></a>
        </div>
    <![endif]-->
</head>
<body id="page1">
    <div class="spinner"></div>
    <div id="bgSlider"></div>
    <div class="extra">
        <div class="main">
            <div class="box">
<!-- header -->
                <header>
                    <h1><a href="index.html" id="logo">Max |      <sup>itc</sup>240</a></h1>
                    <nav>
                        <ul id="menu">
                            <li><a href="#"><span></span>    <strong><?=$today;?></strong></a></li>
                            <li><a href="#"><span></span>    <strong><?=$todayIs;?></strong></a></li>
                            <li>

                            <br >
                            <img src="images/<?=$linkPoster;?>" alt="">


                            </li>


                        </ul>
                    </nav>
                </header>
<!--content -->
                <article id="content">
                    <div class="ic"><!--Content Here... --></div>
                </article id="content">

<!-- / content -->
            </div>
        </div>
        <div class="block"></div>
    </div>
    <div class="bg1">
        <div class="main">
<!-- footer -->
            <footer>
                <div class="bg_spinner"></div>

                <ul class="pagination">
                    <li <?=$strSun;?> ><a href="images/<?=$linkSun;?>">S</a></li>
                    <li <?=$strMon;?> ><a href="images/<?=$linkMon;?>">M</a></li>
                    <li <?=$strTues;?> ><a href="images/<?=$linkTues;?>">T</a></li>
                    <li <?=$strWeds;?> ><a href="images/<?=$linkWeds;?>">W</a></li>
                    <li <?=$strThurs;?> ><a href="images/<?=$linkThurs;?>">Th</a></li>
                    <li <?=$strFri;?> ><a href="images/<?=$linkFri;?>">F</a></li>
                    <li <?=$strSat;?> ><a href="images/<?=$linkSat;?>">S</a></li>
                </ul>


                <div class="col_1">
                    <a href="index.html" id="footer_logo">ZZZ</a> @ 2011
                </div>
                <div class="col_2">
                    Designed by <a rel="nofollow" href="http://www.max-o-matic.com/" target="_blank">max-o-matic.com</a>
                    <!-- {%FOOTER_LINK} -->
                </div>
            </footer>
<!-- / footer-->
        </div>
    </div>
    <script type="text/javascript"> Cufon.now(); </script>
    <script>
    $(window).load(function() {
        $('.spinner').fadeOut();
        $('body').css({overflow:'inherit'})
    })
    </script>
</body>
</html>

As always any and all help is greatly appreciated. Thank you

Don't have enough reputation to comment ;-( But, I think you also have a problem the the date('N'). As per the documentation, the value is 1 (Monday to 7 (Sunday) http://ca1.php.net/manual/en/function.date.php