[dw-free] JS error "randomicon is null" when commenting anonymously

[fu]

[commit: http://hg.dwscoalition.org/dw-free/rev/df0e44320be3]

http://bugs.dwscoalition.org/show_bug.cgi?id=3115

Double-check that the element exists.

Patch by fu.

Files modified:

• htdocs/js/talkpost.js

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diff -r d6718902899b -r df0e44320be3 htdocs/js/talkpost.js
--- a/htdocs/js/talkpost.js	Wed Nov 17 15:16:34 2010 +0800
+++ b/htdocs/js/talkpost.js	Wed Nov 17 15:25:38 2010 +0800
@@ -231,7 +231,8 @@ function subjectIconChange(icon) {
 
 function showRandomIcon() {
     var randomicon = document.getElementById("randomicon");
-    randomicon.setAttribute("class", "randomicon");
+    if (randomicon)
+        randomicon.setAttribute("class", "randomicon");
 }
 
 function randomicon() {
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