Applescript snippet to maximize current window. Use with Alfred for shortcut keys

maximize.scpt

-- source http://apple.stackexchange.com/questions/98187/applescript-the-activate-command-makes-application-half-active
-- tested on Mavericks, needs a Security & Privacy -> Accessibility feature turned on.

tell application "System Events" to tell (process 1 where frontmost is true)
	click (button 1 where subrole is "AXZoomButton") of window 1
end tell
activate application (path to frontmost application as text)