Open New Web Browser Window?

I am in the process of moving a VB.Net Web Application across to Xojo but have the following problem:

At several places within my App. I have a need to open a new browser window to display a report, additional information etc. while preserving the original window.

Whilst I am able to achieve this in VB.Net using a URL with the file name I’m calling with the target set to “_blank”, I cannot figure out how to achieve this in Xojo as I do not know the file extension for web pages or how to implement the equivalent of “_blank”.

In every occurrence where this is required the User will click a button to trigger the event, so I need to code in something for the button’s Action event.

Note: All Authorised Users have Pop Ups unblocked on their browsers.

Many Thanks.