IE8 keeps throwing 'nodeType' is not null error

[somik]

I am building an open source decision system that involves the use of the dojo toolkit to draw a pie chart. It can be accessed at: ​http://wiki.valuefound.org/ieTest/apps/alcohol/

To see the problem in action, follow these steps, in IE8:

1. Go to the Assessment Tab
2. Click on Minor Injuries Given Success

That should throw the following error:

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; MS-RTC LM 8; MALC) Timestamp: Sat, 5 Mar 2011 00:55:00 UTC

Message: 'nodeType' is null or not an object Line: 14 Char: 54035 Code: 0 URI: ​https://ajax.googleapis.com/ajax/libs/dojo/1.5.0/dojo/dojo.xd.js

I've tried for quite some time to debug this, but have been unable to. It works just fine on Chrome and Firefox.

As a test, here is a standalone assessment tool with the pie chart that works just fine on all browsers: ​http://wiki.valuefound.org/tools/assess/

Its just that when it is integrated with the entire decision system that this problem comes up in IE.

Any suggestions on what might be happening to cause this error would be greatly appreciated. Thank you so much.