Where can I find the art-footer code?

Hi, I’m trying to find the following piece of code in my wordpress theme so I can edit it. I can find the code when I view the page source, but I have no idea where to find it in my theme folders.

</div>
                </div>

            </div>
            <div class="cleared"></div><div class="art-footer">
                <div class="art-footer-t"></div>
                <div class="art-footer-l"></div>
                <div class="art-footer-b"></div>
                <div class="art-footer-r"></div>
                <div class="art-footer-body">
                                    <a href='http://www.greengiftideas.co.uk/?feed=rss2' class='art-rss-tag-icon' title=' RSS Feed'></a>                  <div class="art-footer-text">

                  </div>
            		<div class="cleared"></div>
                </div>
            </div>
    		<div class="cleared"></div>
        </div>
    </div>
    <div class="cleared"></div>
    <p class="art-page-footer">

    <div id="wp-footer">