Need action check local msg

[angelic]

i need action useitemon(17513, 0, ground($posx, $posy-1, $posz)), if local chat say "You successfully maintained the treadmill. It smoothly rotates on and on.."
gotolabel(next)
else
gotolabel(tryAgain)

[Akiller]

here:

local localsay = 'You successfully maintained the treadmill. It smoothly rotates on and on..'
local a = false
repeat
	useitemon(17513, 0, ground($posx, $posy-1, $posz))
	foreach newmessage m do
		if m.content == localsay then
			gotolabel(next)
		end
	end
while a == true

[angelic]

here:

local localsay = 'You successfully maintained the treadmill. It smoothly rotates on and on..'
local a = false
repeat
    useitemon(17513, 0, ground($posx, $posy-1, $posz))
    foreach newmessage m do
        if m.content == localsay then
            gotolabel(next)
        end
    end
while a == true

thx bro but not working ;/

[ozzix]

change while to until, so that the last line is,
until a = true

[angelic]

change while to until, so that the last line is,
until a = true

now he changes waypoint but continues to use the item without stopping

[Akiller]

after gotolabel() add break