Hi folks,
what is the command used to click on the 'x' button of popup browser window in perl windows.I am using WIN32::IEAutomation module.

Please any one can help on this....

Have you read the modules documentation? Look for the POPUP METHOD section.

Thanks kevin,
I read modules and wrote the following script:
my $popup = $ie->getPopupWindow("Request Acknowledged-Phaser 4510DT");
$popup->getTable('id:', "headingtext")->Click;

When i use this in my script i am getting error like this:
-Use of uninitialized value $counter in numeric le(<=) at E:/Perl/site/lib/win32/IEAutomation.pm line 537
-Can't call method "title" on an undefined value at E:/Perl/site/lib/win32/IEAutomation.pm line 542.

please give me some suggestions on how to get rid of this error

That is not a script, that is two lines of code totally out of context of the larger script they must come from. No way to tell by looking at those two lines. I am not familiar with the module anyway and will not be able to help with detailed suggestions.