Authors CurseForge

Is there an easy way to get a players tradeskills and their cooldowns?
What I have seen so far seems pretty complicated.
(http://www.wowace.com/addons/broker-tradecooldowns/) for example.

Basically I only want to know whether a tradeskill (Imperial Silk, Sha Crystal for example) is ready for a player.

What I tried so far is

local start, duration, enable = [URL="http://wowprogramming.com/docs/api/GetSpellCooldown"]GetSpellCooldown[/URL]([URL="http://www.wowhead.com/spell=125557"]125557[/URL])
-- returns 0,0,1 if I have the spell and it is not on cooldown
-- returns 2091844.252, 19966.7, 1 if I have the spell and it is on cooldown
-- returns also 0,0,1 if the player does not have the skill

So the Problem seems to be the players without the skill.

Any good ideas?

Does IsSpellKnown(125557) or IsPlayerSpell(125557) work for tradeskills?

On my tailor, which does not have enchanting:

-- Imperial Silk (Tailoring)
[URL="http://wowprogramming.com/docs/api/IsSpellKnown"]IsSpellKnown[/URL]([URL="http://www.wowhead.com/spell=125557"]125557[/URL]) -- false on my tailor
[URL="http://wowprogramming.com/docs/api/IsPlayerSpell"]IsPlayerSpell[/URL]([URL="http://www.wowhead.com/spell=125557"]125557[/URL]) -- true on my tailor
-- Sha Crystal (Enchanting)
[URL="http://wowprogramming.com/docs/api/IsSpellKnown"]IsSpellKnown[/URL]([URL="http://www.wowhead.com/spell=116499"]116499[/URL]) -- false on my non-enchanter
[URL="http://wowprogramming.com/docs/api/IsPlayerSpell"]IsPlayerSpell[/URL]([URL="http://www.wowhead.com/spell=116499"]116499[/URL]) -- false on my non-enchanter

tl;dr: IsSpellKnown does not work for tradeskills, IsPlayerSpell does

Okay, works perfectly to query the information.
Thank you very much Phanx.