Session.SessionID in a .asp vs .aspx

Hi,Can someone tell me why the following code works in an .asp page but not in an .aspx page?<SCRIPT LANGUAGE = VBScript>
Document.Cookie = "SecuCk= " & <%= Session.SessionID %>
</SCRIPT>When I look at the value of the cookie SecuCk set from the .asp page I can see the session id number (Example: SecuCk=658373536)When I look at the value of the same cookie set from the .apsx page, there is no session number (Example: SecuCk).Is Session.SessionID accessible inside an .aspx page? Note: ...