From 865da14944c446e157d49ba85e027c8a7e7929e2 Mon Sep 17 00:00:00 2001
From: defacer <defacer>
Date: Wed, 20 Apr 2005 01:32:18 +0000
Subject: [PATCH] Fix for bug 2902: Now you can set $focus in print_header to
 anything, and it will never generate a JS error.

---
 lib/javascript.php | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/lib/javascript.php b/lib/javascript.php
index d5df7fc195b..1c49e3a366c 100644
--- a/lib/javascript.php
+++ b/lib/javascript.php
@@ -47,7 +47,14 @@ function inserttext(text) {
 ?>
 }
 
-<?php if (!empty($focus)) { echo "function setfocus() { document.$focus.focus() }\n"; } ?>
+<?php if (!empty($focus)) {
+    if(($pos = strpos($focus, '.')) !== false) {
+        $topelement = substr($focus, 0, $pos);
+    }
+    else {
+        $topelement = $focus;
+    }
+    echo "function setfocus() { if(document.$topelement) document.$focus.focus(); }\n"; } ?>
 
 // done hiding -->
 </script>