-- Ver 0.2 fixed bug
-- Set the start date of selected tasks/projects to N hours from now ...
-- (Prompts user for the number N)
on run
	set dblHours to GetNumber()
	set strReport to DeferSelected(dblHours)
	if length of strReport > 0 then display dialog strReport
end run

on DeferSelected(dblHours)
	tell application "OmniFocus"
		try
			set oWin to front window
		on error
			return
		end try
		
		set dteWhen to current date
		set hours of dteWhen to (hours of dteWhen) + dblHours
		
		set strReport to ""
		set lstTrees to selected trees of content of oWin
		repeat with oTree in lstTrees
			set oValue to value of oTree
			tell oValue
				set cClass to class
				if (cClass is task) or (cClass is project) then
					set start date to dteWhen
					set strReport to strReport & name & return
				end if
			end tell
		end repeat
		if length of strReport > 0 then
			set strReport to "Deferred start date of:" & return & return & strReport & return & "to:  " & (dteWhen as string)
		end if
	end tell
	return strReport
end DeferSelected

on GetNumber()
	tell (display dialog "Number of hours from now: " default answer "0")
		set strNum to text returned
	end tell
	
	try
		set dblNum to strNum as number
	on error
		display dialog strNum & " is not recognizable as a number"
		return missing value
	end try
	return dblNum
end GetNumber