Any help with splitting this script into 2 client and server sided?

So I have this code that client sided, that gives you a money tool depending on the money you put it, but I need it give the money value to the money tool, server sided, but im confused on how i would split this up, any help? Here is the script.

local currency = "Cash"	-- Change this to the currency you want to use

local button = script.Parent
local setter = button.Parent.AmountBox
debounce = false

function chaching()
	button.Image = "http://www.roblox.com/asset/?id=96539788"
	wait(1)
	button.Image = "http://www.roblox.com/asset/?id=96539352"
end

function errormessage()
	setter.ErrorText1.Visible = true
	wait(3)
	setter.ErrorText1.Visible = false
end

function notenough()
	setter.ErrorText2.Visible = true
	wait(3)
	setter.ErrorText2.Visible = false
end

function onClick()
	if debounce == false then
		local player = button.Parent.Parent.Parent.Parent
		if tonumber(setter.Text) and tonumber(setter.Text) % 1 == 0 and tonumber(setter.Text) >= 1 then
			local amount = setter.Text
			local cash = player.leaderstats:FindFirstChild(currency)
			if tonumber(amount) <= cash.Value or tonumber(amount) == cash.Value then
				cash.Value = cash.Value - tonumber(amount)
				wait()
				player.leaderstats.Cash.Value = player.leaderstats.Cash.Value 
				local bag = game.Lighting.Money:clone()
				bag.Parent = player:FindFirstChild("Backpack")
				bag.MoneyValue.Value = amount
				debounce = true
				spawn(chaching)
				wait(5)
				debounce = false
			else
			notenough()
			end
		else
			errormessage()
		end
	end
end

button.MouseButton1Click:connect(onClick)