--- a/functions.php	Fri Jun 12 11:38:43 2009 -0400
+++ b/functions.php	Fri Jun 12 11:57:08 2009 -0400
@@ -333,3 +333,21 @@
   }
 }
 
+/**
+ * Decodes a hex string.
+ * @param string $hex The hex code to decode
+ * @return string
+ */
+
+function hexdecode($hex)
+{
+  $hex = str_split($hex, 2);
+  $bin_key = '';
+  foreach($hex as $nibble)
+  {
+    $byte = chr(hexdec($nibble));
+    $bin_key .= $byte;
+  }
+  return $bin_key;
+}
+