if this is a forum,

Hello I have a problem with my xhtml document.

if I open the webpage if netscape 6 oder mozilla 1.3 i can see the 
content of my page, but if I try to open it with iexplorer or netscape 
4.xx it's white.
I reference my javascript source in another extern file, and I thing 
this is, what those browser doesn't like.

Can somebody help me?

Markus