You can set up IMail Web Messaging so that when you read a message, the menu buttons (Next, Reply, Reply All, Forward, Delete, and Move To) are located only at the top of the page, only at the bottom, or at both the top and bottom (if the message is long).
Select Edit My Preferences under Personal Account Options.
On the Edit Preferences page, locate Menu buttons in read message screen and select Top, Bottom, or Both.
Click the Save button.