JavaScript and Cookies problem

Hi,

I have a problem with browsing internet through InterNotes Web Server (web.nsf). I have enabled javascript and java applet and accepting cookies. Browser uses own Lotus notes browser, not internet explorer. I always get messages like this:

A JavaScript error was encoutered while loading a page.

Error on line 64: ToObjectError: appName has no properties

or

Error on line 870: CallError: document.GetElementsByTagName is not a function

and checkboxes to skip and not to show any more errors on that page.

How can i resolve that problem ?

Another problem is when i want to logon on Yahoo Mail i got message from yahoo that my browser rejected cookies. What to do with that ?