WB And Safari On A MBP

Hi All

A bit off topic but calling all Apple gurus.

I have a button on a page in a WebDev that when pressed displays a pdf file stored on the server. I am using FileDisplay to display it. On Safari a new tab does not open. It uses the current tab that the page was opened on. So when viewing the pdf is done there is no ways of getting back to the web app. Pressing the back button does not do it - it says it has to post a form and of course posts the opening of the pdf again.

I have no idea if that makes any sense - it renders the opening of pdf files on a MBP using Safari useless.

I have tried making something else other than the browser the default pdf app with which to open pdf files.

Any ideas are welcome.

Cheers
André