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-rw-r--r--ui/ui.core.js2
1 files changed, 1 insertions, 1 deletions
diff --git a/ui/ui.core.js b/ui/ui.core.js
index be0caa920..1ac19b7ff 100644
--- a/ui/ui.core.js
+++ b/ui/ui.core.js
@@ -454,7 +454,7 @@ $.fn.extend({
ariaState : function(state, value) {
// setter?
- if (value)
+ if (value !== undefined)
return this.each(function(i, el) {
isFF2? el.setAttributeNS("http://www.w3.org/2005/07/aaa", "aaa:" + state, value) :
$(el).attr("aria-" + state, value);