on waitForWin(check_name, time_out)
  set wait_time to 0

  tell application "System Events"
    repeat while (wait_time < time_out)
      set frontApp to first application process whose frontmost is true
      set frontAppName to name of frontApp
      tell process frontAppName
          tell (1st window whose value of attribute "AXMain" is true)
              set windowTitle to value of attribute "AXTitle"
          end tell
      end tell

      if check_name is in windowTitle then exit repeat
      delay 1
      set wait_time to wait_time + 1
    end repeat

    if wait_time >= time_out then
      display dialog "[timeout] didn't find '" & check_name & "' in window: " & windowTitle
    else
      display dialog "find " & check_name & " in window: " & windowTitle
    end if

  end tell
end waitForWin

my waitForWin("some text", 3)