Hidden Div's not hiding over 3g network yet works fine on wi-fi

I have seen very similar posts on here but not quite the same. Page loads fine over wi-fi, not over 3g. issue. I have hidden div's which should call a seperate inc file via php, problem is they are all being loaded at once & the css script file is being ignored. any ideas, would it help if I shortened the css file and just had a specific one just for my hidden divs?

Web page with hidden div's (no spaces in the div id's)

<div id="PopUp1"  class="PopUp1">
    <?php include "scripts/wsr/driver1开发者_StackOverflow中文版.inc"?> 
    <div style='text-align: right;'>
        <a onmouseover='this.style.cursor="pointer"'
           style='font-size: 12px;'
           onfocus='this.blur();'
           onclick="document.getElementById('PopUp1').style.display = 'none'">
            <span style="text-decoration: underline;">
                Close
            </span>
        </a>
    </div>
</div>

Wild guess: The CSS or similar is cached on the 3G providers webcache -- so you are actually getting an old version (say a version from within the last 24 hours)

Try to cache-bust by change the name of the CSS and other files loaded and it will probably all start working

Late reply - PHP and Jquery-min-1.5 and above

Recently I encountered a similar problem when using PHP and Jquery-min-1.5.X (and above).

When developing a eCommerce system for a client, I implemented a carousel, with the source code placed in PHP file and powered by Jquery-min-1.5.2.js placed locally on the server.

Problems encountered: When using mobile devices (ie iPhone, iPad etc) connected via wifi/ cable the carousel displayed correctly. Tethering the website through 3G via Orange, Vodafone again the site displayed correctly.

However if I tethered the website via O2 or T-Mobile to a iPhone or iPad the ajax function failed to load correctly thus causing errors in the debug console.

MD5 SUM reveals differences in how data is pulled from the server (comparison between wifi and tethering O2) - which concludes this is not a CSS/ Cache error.

Change "script" directory from local to point at Google Ajax Library and the carousel displays correctly.

In conclusion the error is caused by a server proxy error - only apparent with O2 and T-Mobile.

When testing this theory I used the iPhone debug console on both Orange and O2 networks. Orange revealed no errors throughout the testing phase. O2 revealed error prior to the above being carried out, following the changes the errors were resolved.