Modified show_error() to allow sending of HTTP server response codes.
Added set_status_header() to the Common functions to allow use when the Output class is unavailable.
Fixed a bug where the 400 status header sent with the 'disallowed URI characters' was not compatible with CGI environments.
diff --git a/user_guide/general/errors.html b/user_guide/general/errors.html
index c1bb691..af11845 100644
--- a/user_guide/general/errors.html
+++ b/user_guide/general/errors.html
@@ -71,9 +71,10 @@
<p>The following functions let you generate errors:</p>
-<h2>show_error('<var>message</var>')</h2>
+<h2>show_error('<var>message</var>' [, int <var>$status_code</var>= 500 ] )</h2>
<p>This function will display the error message supplied to it using the following error template:</p>
<p><dfn>application/errors/</dfn><kbd>error_general.php</kbd></p>
+<p>The optional parameter $status_code determines what HTTP status code should be sent with the error.</p>
<h2>show_404('<var>page</var>')</h2>
<p>This function will display the 404 error message supplied to it using the following error template:</p>