downloading comics url batch script

@echo off
GOTO:REM
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downloads all the html files of the comics from explosm until page 3450
I have then to get the names of the images stored in the urls
This is part 1 of the idea

Learned lots of interesting stuff with this:
-how to increase a variable in batch
-how to create an alternative kind of loop in batch
-how to give variables to wget in batch
-how to add text variables in batch
-how to make comments in batch
-how to rename a url or file with wget

The code may be dirty, never learned batch so idk.
Would probably been way simpler with greasemonkey and javascript, best would have been chickenfoot with firefox 3.6

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:REM
set a=http://explosm.net/comics/
set b=/

set i=15
set limit=3450

:loop
set url=%a%%i%%b%
wget -A jpg %url% --output-document="file"%i%".html"
set /a i+=1
if not %i%==%limit% goto loop
pause > nul