window.open framed page not work in mozilla

Mozilla shows a html source instead of content

[daddy]

Hi,

I want to simply open popup window with some framed page, like window.open('somepage.htm', 'title', 'parameters').

It works fine with IE5, but Mozilla shows HTML SOURCE CODE of framed page!

Please help :))

[DrDoc]

Welcome to Webmaster World!

Is the page truly an HTML document? If not, then it might show the source instead.