C# javascript webclient

I need to create a C# function to login into a site and get the url links on the site. The problem is the site uses javascript to resubmit the login information after login which stops me from using the C# webcleint. I need someone with more experiance than myself with creating this function if it can be done. I need this imediately. I just need the function to login and return the href links on the resulting page in an array of strings. example string [] links; links = getLinks(url, user, pass); getLinks(string url, string username, string password) { string [] theLinks; code to login and get links return theLinks } I am ok if there is a dll or class needed to be added to get this workign but I will need all code and files needed to compile this into my soltuion. I need ownership/ rights to be able to redistribute the soltuion as well in comerical products.