window.close() in IE5 Mac

Hi all,

I have some code below which closes a popup window. It doesn't seem to work in IE5 on the Mac - I get a script error saying 'This Object does not support this property or method'. Here is the code -

window.openedWindow.close();

- where openedWindow is the variable reference to the popup.

Any help would be greatly appreciated as I cannot find any reference to this not working on the Mac.

Cheers,
Matt.