[HELP] Money and decimal numbers question

[..:D&G:..]

Hello guys, I am making an economy system for my server. I made a coins system which I want to use in shops. For example I want to sell a Burger for $4.50, so I want the player to pay 4 dollars, (takePlayerMoney) and then the number after the decimal (.50) to be takem from the player as 50 coins (takePlayerCoins). I really don't know how to do this , the items from shops are in a table like this:

local shops = 
{ 
    -- General 
    [1] = { 
            {"Mask", "A Mask", "$5.25"}, 
            {"Cookies", "A packet of cookies", "$3.53"}, 
            {"Water Bottle", "A bottle of water", "$1.99"}, 
            {"Ice Cream", "A cold Ice Cream", "$3.56"}, 
            {"Coca Cola", "A can of Coca Cola", "$1.10"}, 
            {"Lighter", "A stylish Lighter", "$2.59"}, 
            {"Cigarette", "A Cigarette", "$0.50"}, 
            {"Card Deck", "A Card Deck", "$5.20"} 
        }, 
} 

Also, the prices are taken from a row:

local itemCost = guiGridListGetItemText(shopItemsList, row, 2):sub(2) 

Any idea how to do this guys?

Thanks.

[Castillo]

Split the cost, if it has a decimal ( a dot ), take the first value of the splitted cost as the money to take, and the second as the coins.

Example:

local cost = 3.25 
local splittedCost = split ( tostring ( cost ), "." ) 
if ( splittedCost ) then 
    outputChatBox ( tostring ( splittedCost [ 1 ] ) ) 
    outputChatBox ( tostring ( splittedCost [ 2 ] ) ) 
end 

[..:D&G:..]

It worked Thanks man, I owe you ;D

[Castillo]

You're welcome.