From 32ba2f0dd4ad1cd6947e601369e9dabd66f2c7e8 Mon Sep 17 00:00:00 2001
From: jamiesensei <jamiesensei>
Date: Fri, 2 May 2008 16:11:30 +0000
Subject: [PATCH] MDL-14663 "link_to_popup_window displays 'Click here....' as
 the link text if you pass in 0 as the link text." Also fixing the problem in
 link_to_popup_window function. Test for null instead of empty.

---
 lib/weblib.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/weblib.php b/lib/weblib.php
index 09f9b178ee4b7..39f9a34d367ad 100644
--- a/lib/weblib.php
+++ b/lib/weblib.php
@@ -675,7 +675,7 @@ function element_to_popup_window ($type=null, $url=null, $name=null, $linkname=n
     }
     
     // get some default string, using the localized version of legacy defaults
-    if (!$linkname) {
+    if (is_null($linkname) || $linkname === '') {
         $linkname = get_string('clickhere');
     }
     if (!$title) {