Sorting algorithm is having problems

[pixelizedgaming]

kinda new to skripting, so i suck

anyways im trying to make a least to greatest sorting algorithm

function least2greatest(list: objects) :: objects: #list has entries modeled like %number%.%text%
 set {_i} to 0
 loop size of {_list::*} times:
  add 1 to {_i}
  set {_j} to {_i}
  loop size of {_list::*} times:
   add 1 to {_j}
   if {_j} is less than size of {_list::*} + 1:
   set {_one} to 1
   set {_tt1::*} to {_list::%{_i}%} split at "."
   set {_t1} to {tt1::%{_one}%} parsed as an integer
   set {_tt2::*} to {_list::%{_j}%} split at "."
   set {_t2} to {tt2::%{_one}%} parsed as an integer
   broadcast "%{_tt1::*}%, %{_tt2::*}%" #each of them show up as "%number% and %text%", so it works
   broadcast "%{_list::%{_i}%}%,%{_list::%{_j}%}%" #each of them show up as "%number%.%text%" so it works
   broadcast "%{_t1}%,%{_t2}%" # both show up as <none>
   if {_t1} is greater than {_t2}:
    set {_temp} to {_list::%{_i}%}
    set {_list::%{_i}%} to {_list::%{_j}%}
    set {_list::%{_j}%} to {_temp}
  
  
   else:
   stop
 broadcast "%{_list::*}%"

why is {_t1} or {_t2} <none>