From e306989c6d03aac37e2557465b4812ea21970065 Mon Sep 17 00:00:00 2001
From: wei <>
Date: Wed, 24 Jan 2007 05:52:22 +0000
Subject: Fixed #517, #519, #521

---
 framework/Web/Javascripts/js/debug/ajax.js | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'framework/Web/Javascripts/js/debug/ajax.js')

diff --git a/framework/Web/Javascripts/js/debug/ajax.js b/framework/Web/Javascripts/js/debug/ajax.js
index 9b1046ba..def73994 100644
--- a/framework/Web/Javascripts/js/debug/ajax.js
+++ b/framework/Web/Javascripts/js/debug/ajax.js
@@ -2308,8 +2308,11 @@ Prado.WebUI.ActiveListControl = Base.extend(
 	constructor : function(options)
 	{
 		this.element = $(options.ID);
-		this.options = options;
-		Event.observe(this.element, "change", this.doCallback.bind(this));
+		if(this.element)
+		{
+			this.options = options;
+			Event.observe(this.element, "change", this.doCallback.bind(this));
+		}
 	},
 
 	doCallback : function(event)
-- 
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