Access denied even same domain

[deepcw]

I am getting Error-Access is denied in IE. Child window for calendar is opened and when on change of say month/year try to write page content again, then getting this kind of error. Domain is same for both parent and child. And this error is not coming on each machine. What might be the problem?

Thanks in advance.

[acoder]

Welcome to TSDN!

Can you give a test page or post some code?

[deepcw]

When user clicks on Calendar button, First window is opened by window.open(), docCal is reference to that window's document object. Calendar body part is rendered by docCal.writeln(). Problem occurs whenever there is change in month/year, calendar body part is rendered again by docCal.writeln() where it gives Access is denied error. This doesn't came for the first time content is rendered and even doesn't came on all machines. I tried setting domain for this window before writing content, but it fails.
Is there any problem of browser's Internet options setting?
We are using IE version 6

Thanks

[deepcw]

Error has gone when domain is changed to full name of that host.
For ex. for host cmssds2.ab.company.com, previously domain set was company.com, now if I changed to cmssds2.ab.company.com, its working. I dont know why? Any idea?