Check Refferer in .NET

[tomasz]

I have two pages
Page A has javascript which open page B using window.open.

Page B has to be opened as popup window and needs to check referrer on page load event to see if it comes from PageA link.
If i use just plain link i can get referrer but when i use javascript referrer is blank.

Any suggestion would be appreciated

[RossWal]

Must you use referer? Could you simply pop a parm into the querystring?

[tomasz]

I need to make shure that this page will be available from pageA only not from address bar, so I thought if i get referrer i can validate and redirect invalid users to different page. PageB has to be popup.

[RossWal]

This from my handy dandy javascript bible:

newWindow = window.open("","")
if (newWindow!= null)
newWindow.document.write("Some HTML")
//newWindow.focus() This line added by me, untested

Will that work?