Table with function that uses the table's other fields

So, the wiki’s down, therefore I’m forced to ask this before searching in it:

Basically I have a table with some fields in it:
[lua] newskill = {
name=oldskill.name,
level=oldskill.level,
exp=oldskill.exp,
update= function() …
}[/lua]

I want the update function to be able to access the newskill.level and newskill.exp values. How can I proceed?

[editline]26th January 2012[/editline]

Wandering around the forum I just found this:
http://maurits.tv/data/garrysmod/wiki/wiki.garrysmod.com/index4875.html?title=Main_Page
Usefull ^^

[editline]26th January 2012[/editline]

Found the answer to my question by R-ing-TFM:

http://www.lua.org/pil/16.html
Objects have their own operations. Tables also can have operations:
[lua]Account = {balance = 0}
function Account.withdraw (v)
Account.balance = Account.balance - v
end[/lua]
This definition creates a new function and stores it in field withdraw of the Account object. Then, we can call it as
[lua]Account.withdraw(100.00)
[/lua]

So in the end:
[lua]newskill = {
name=oldskill.name,
level=oldskill.level,
exp=oldskill.exp,

}
newskill.update = function()
	if newskill.exp > newskill.level*100 then
		newskill.level=newskill.level+1
		newskill.exp=0
	end
end[/lua]