args Path, Name, Ext
local Len = length(Name)
local hwnd = win.handle("c=TTOTAL_CMD")
local Panel = ifelse(tc.active(hwnd) == "left", 8, 7)
local TMLB = childwin.handle(hwnd, "TMyListBox", Panel)
local Current = win.sendmessage(TMLB, 0x0188, 0, 0)
local i, Group, Counter

for(i = Len; i > 0; i--)
	Group = select(Name, i, i)
	if(not miscplugin.is_int(Group))
		break

endfor

if(i) do
	Group = select(Name, i)
	Counter = select(Name, i - Len)
else
	Group = ""
	Counter = Name
endif

for(i = 0; 1; i++)
	Len = fill(repeat("0", length(Counter)), Counter + i)
	Name = Group ++ Len
	if(not file.validpath(Path ++ "\" ++ Name ++ "." ++ Ext))
		break
		
endfor

win.sendmessage(TMLB, 0x0183, Current, Current + i - 1)