[imp] Permission denied error on login page

[Heikki Ylipaavalniemi]

I have noticed that with Internet Explorer when going to the login page of Horde I get an JavaScript error. With Mozilla Firefox I can't reproduce the problem.

The error is:
Line: 16
Char: 5
Error: Permission denied
Code: 0
URL: http://webmail.domain.com/horde/imp/login.php?url=http%3%2F%2Fwebmail.domain.com%2Fhorde%2Flogin.php

The code in source is:
function setFocus()
{
    document.implogin.imapuser.focus();
}

Horde Versions

Horde: 2.1 
IMP: 3.1

PHP Version: 4.3.4 

What could I do about this? Is there a file with wrong permission or something like that?


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