script to collect craigslist reply addresses

I need a simple script that allows me to enter a web url (such as : [login to view URL] ) and a number of pages ( such as: 5) and the script will start from the url and also go to the next (5) pages to collect each ad poster's reply email address ( generally something like weererer-3434 @ craigslist .com ). Put the collected addresses into a text file, separate each address by comma. (10 addresses per line)