Script Summary: Adds a right-click menu and preview pane (so far) to Outlook Web Access
Version: 0.5
Right-click the envelope, subject line, etc. to get a menu. Left-click to open a preview pane.
v0.2: resizable preview pane
v0.3: improved preview pane
v0.4: more preview pane improvements
v0.5: highlights current message and marks messages as read when clicking off of them
