Applescript to open up the app store and search for Xcode

gistfile1.applescript

tell application "App Store"
  activate
  delay 5 -- wait for it to start
end tell

tell application "System Events"
  tell window "App Store" of process "App Store"

    -- Search for Xcode
    tell text field 1 of group 7 of tool bar 1
      set value to "Xcode"
      click button 1
      delay 2
    end tell

    -- ...

  end tell
end tell