How to scrap a site which uses login to display data?

I want to download plaintext written in HTML table as well as the zip files attached in <a>.
But the problem is the site is using login method to provide links to download pdf. I am using HTML Dom parser. The link to site is: http://www.gtucampus.com/exam-paper…ester-I-stream-1-cmbcollegesearch-Search.html
Without login, it will display only # in href of <a>.
Really need to download all the papers. Please…
How to scrap a site which uses login to display data?

See original post by Ashish Revar