Referencing the page Body or Form from Global.asax?

[oddball]

I need to render the Body or Form tags of every aspx page loaded with a javascript event. This event will open a popup when the main browser is closed.

I can add javacript events to objects using:

object.Attributes.Add("onunLoad", "Logoff.aspx&quot


So can i reference the Body or Form tags of the loaded page from within the Sub Application_BeginRequest in Global.asax.


cheers,

si