Mouse click

Does any one know how to make a ‘mouse click’ at a certain location with applescript?

The System Events dictionary has this under Processes Suite/Commands…

click: cause the target process to behave as if the UI element were clicked
	click  UI element  -- The UI element to be clicked.
		[at  list]  -- when sent to a "process" object, the { x, y } location at which to click, in global coordinates
	Result:   UI element  -- the reply for the command

So if you know the coordinates of the postition for the mouse to click you could do something like

tell application "System Events"
	delay 1
	tell process "Script Editor"
		click at {841, 155}
	end tell
end tell