API GetItemCooldown

Returns cooldown info for an item ID.
 startTime, duration, enable = GetItemCooldown(itemInfo)
==Arguments==
:;itemInfo: : 
===Returns===
:;startTime: - The time when the cooldown started (as returned by GetTime()) or zero if no cooldown.
:;duration: - The number of seconds the cooldown will last, or zero if no cooldown.
:;enable: - 1 if the item is ready or on cooldown, 0 if the item is used, but the cooldown didn't start yet (e.g. potion in combat).
==Details==
As of patch 4.0.1, you can no longer use this function to return the Cooldown of an item link or name, you MUST pass in the itemID.
If you need the original behavior, here is a function that simulates that function...
function GetItemCooldown_Orig(searchItemLink)
	local bagID = 1;
	local bagName = GetBagName(bagID);
	local searchItemName = GetItemInfo(searchItemLink);
	if (searchItemName == nil) then return nil end
	while (bagName ~= nil) do
		local slots = GetContainerNumSlots(bagID);
		for slot = 1, slots, 1 do
			local _, _, _, _, _, _, itemLink = GetContainerItemInfo(bagID, slot);
			if (itemLink ~= nil) then
				local startTime, duration, isEnabled = GetContainerItemCooldown(bagID, slot);
				if (startTime ~= nil and startTime > 0 and itemLink ~= nil) then
					if (searchItemName == itemName) then
						return startTime, duration, isEnabled;
					end
				end
			end
		end
		-- Restart While Loop
		bagID = bagID + 1;
		bagName = GetBagName(bagID);
	end
	return nil;
end