Issue using struts2 autocompleter.

Hi,

I am facing an issue in struts2 autocompleter.

Issue:

In jsp page where I have used autocompleter, IE is showing an alert message with "stack overflow at line: 8259" and in the same jsp page, I have an error as "djConfig.baseScriptUri.length' is null or not an object"
and autocompleter is behaving like a combo box.

Jsp code for autocompleter is:

<s:head theme="ajax"/> inside head tag
<s:autocompleter list="mailNameList" name="mailName" theme="simple" /> inside body tag
In Action class: private  List<String> mailNameList;

when I remove <s:head theme="ajax"/> tag, both errors are not coming, but instead of autocompleter, combo box is displaying in the jsp page.

Kindly help me..

Thanks in advance