I see this alias repeated several times:

alias isnumber {
  %cislo = $calc($calc($1 / 1) * 2)
  if (%cislo != $calc($1 * 2) || %cislo == 0) { msg # $nick $+ : Please put Facebook ID . | halt  }
}

I did not understand what is.

And then, if $calc($1 / 1) = $1 (123456789 / 1 = 123456789), why divide by 1?.
if the variables need not be invoked in other events or alias, why not use local variables that dirty minus mirc register?.
set %variable = value and %variable = value, leave traces in the registry and this helps when you need to call a variable with alias or other events.

excuse my bad english

Edit: I do not know why out of the tag
to each line in the code. :\