How to close browser pop-ups

Easiest way to close IE browser pop-ups (not javascript) is to use AutoIt. Here is an example:

autoit = WIN32OLE.new('AutoItX3.Control')
autoit.ControlClick("Windows Internet Explorer",'', 'OK')
autoit.ControlClick("Security Information",'', '&Yes')
autoit.ControlClick("Security Alert",'', '&Yes')
autoit.ControlClick("Security Warning",'', 'Yes')
autoit.ControlClick("Message from webpage",'', 'OK')