Scripting Mouse clicks

Can someone help me write a script that will make the mouse click in a specific location? My applescript knowledge is very limited and I would greatly appreciate a nudge in the right direction.

Something like this… yes …no… maybe¿

tell application "System Preferences"
	activate
	set current pane to pane "com.apple.preference.spotlight"
	tell application "System Events"
		tell process "System Preferences"
			click radio button 2 of tab group 1 of window 1
			click button 1 of tab group 1 of window 1
		end tell
	end tell
end tell

Tom