To implement, just add the script to the top of the page and then add the "upsidedowntext" class to elements you need upside down.
HTML:
<script type="text/javascript" src="upsidedown.js"></script> <div class="upsidedowntext">I can be read in any orientation</div> <div>I can be read in any orientation</div> <div class="upsidedowntext">This is Tom Cruise taking your picture</div> <div>This is a boring level Russian Mig</div>
Output
Here is the original post