From 402e95be6ff4053d1518e6c661a29ab488b3d132 Mon Sep 17 00:00:00 2001
From: Jamie Cameron <jcameron@webmin.com>
Date: Thu, 1 Sep 2011 14:00:53 -0700
Subject: [PATCH] Don't assume prehead function exists

---
 blue-theme/right.cgi | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/blue-theme/right.cgi b/blue-theme/right.cgi
index d8adfd5a3..f536b4417 100755
--- a/blue-theme/right.cgi
+++ b/blue-theme/right.cgi
@@ -19,7 +19,9 @@ foreach $o (split(/\0/, $in{'open'})) {
 	$open{$o} = 1;
 	}
 
-&popup_header(undef, &capture_function_output(\&WebminCore::theme_prehead));
+$prehead = defined(&WebminCore::theme_prehead) ?
+		&capture_function_output(\&WebminCore::theme_prehead) : "";
+&popup_header(undef, $prehead);
 print "<center>\n";
 
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