Use functions (not global variables) for protocol and base_url

projects/index.php

@@ -15,7 +15,7 @@ include("../header_top.php");
 		<h3>Personal</h3>
 		<p>Most self-respecting geeks I know tend to leave personal projects in their wake in varying stages of completion. Here is a woefully incomplete and out-of-date listing of mine:</p>
 		<p><a href="http://aedrix.org">Aedrix</a>, a simple OS kernel which runs on ARM (inclusing the Raspberry Pi) and x86.</p>
-		<p>An <a href="<?php echo $base_url; ?>/blog/2011/06/the-sorry-state-of-open-source-dropbox-clones/">open-source Dropbox clone</a> written in python, <a href="https://github.com/aclindsa/asink">Asink</a>.</p>
+		<p>An <a href="<?php echo get_protocol(); ?>blog.aclindsay.com/2011/06/the-sorry-state-of-open-source-dropbox-clones/">open-source Dropbox clone</a> written in python, <a href="https://github.com/aclindsa/asink">Asink</a>.</p>
 		<p>One project which I would love to actually work on if I ever had the time, can be found at <a href="http://acal.aclindsay.com">acal.aclindsay.com</a>. </p>
 		<p>I volunteer some of my computers' idle time to the <a href="http://www.worldcommunitygrid.org/">World Community Grid</a>. It's easy, and helps to do things such as "find drugs that can disable three particular proteins associated with neuroblastoma, one of the most frequently occurring solid tumors in children"  via the <a href="http://www.worldcommunitygrid.org/research/hfcc/overview.do">Help Fight Childhood Cancer</a> project.</p>
 		<p>My <a href="https://github.com/aclindsa">github page</a> has several small projects I have worked on over time.</p>