How to get AppleScript to repeat every 10 seconds?

Question

Hi. I created this piece of code using AppleScript Editor on OS X Lion 10.7.3 and I want to make it automatically repeat itself every 10 seconds. The code is supposed to reload the tab which the user is currently on every 10 seconds. I made the reload part but can't figure out how to make it reload every 10 seconds after extensive googling. Here is the code, can someone add the needed code it to make it reload the current page every 10 seconds and reply to me please.
tell application "Safari"
  activate
end tell
tell application "System Events"
          tell process "Safari"
  keystroke "r" using {command down}
          end tell
end tell

Answer 1

Since you're using UI scripting to emulate a Command-R keypress, Safari has to be frontmost - otherwise the Cmd-R would go to whatever other application was frontmost.
One alternative would be to use a JavaScript to reload the page, rather than UI scripting. For example:
repeat
          tell application "Safari"
                    do JavaScript "location.reload(true)" in document 1
          end tell
  delay 10
end repeat
There are other JavaScript-based solutions, too, depending on whether you want a simple reload, or re-post form data, etc.