Dock Icon that activates PageDown Is it possible to create a mac OSX dock icon that activates the page down key?
Here is a simple example:

tell application "System Events"
    set frontmostProcess to first process where it is frontmost
    delay 0.01
    key code 121
end tell


116 is key code for page up.  Here's a list of the other key codes: Key Codes for Function and Special Keys in Applescript