Generally you connect to the website and make a HTTP request
. Then, you parse the incoming data and collect the information you need.
Since you will be coping with HTML text, you may want to keep this tags-stripper handy:; Usage: $nohtml(string)
alias nohtml var %a | !.echo -q $regsub($1-,/^.*?>|<.*?>|<.*?$/g,,%a) | return %a
If you need further help, post here the code you've got, and let us know the address of the page in question so we can experiment with it ourselves.