Object doesn't support this method or property

Object doesn't support this method or property

Hi,
 
I am developing a web application and trying to use the autocompelete plugin available from jquery.
 
I have added these references in my usercontrol
 

<

 script src ="../jquery-1.4.2.js" type ="text/javascript"></ script >

<

 script src ="../jquery.autocomplete.js" type ="text/javascript"></ script >

<

 script src ="../jquery.autocomplete.min.js" type ="text/javascript"></ script >

<

 link href ="../jquery.autocomplete.css" rel ="stylesheet" type ="text/css">

</
link >
 
I get an error 'Object doesn't support this method or proprty' at the line:
 

$(document).ready(

function() {

$(

"#<%= txtManager.ClientID%>").autocompleteArray(['Allen', 'Albert', 'Alberto', 'Alladin']);

});
 
I tried to call autocomplete('eventhandler.ashx') as well. Both throws the above error.
 
I have IE6 and am using a web user control which will be displayed on a page with masterpage.
 
Could someone please help me?
 
kind regards,
 
Anu