Trying to login to a webpage that uses javascript with c#

I am trying to login to http://www.fitchratings.com/ but as it's not asp, but in jscript, I have absolutely no idea how. Would greatly appreciate any pointers

Username: sccz97test
Password: testing123

Hey, I am doing something similar, and I got my project to work by navigating to the page, and then searching for all of the input fields, adding the correct text, and then programmatically clicking the login button:

IHTMLDocument2 doc = (IHTMLDocument2)b.Document.DomDocument as IHTMLDocument2;

//<input size="30" maxlength="32" id="accountpassword" type="password" name="theAccountPW" />
HTMLInputElement ele = (HTMLInputElement)doc.all.item("theAccountPW", 0);
ele.value = theAccountPW;

//<input size="30" autocapitalize="off" autocorrect="off" maxlength="128" id="accountname" type="text" name="theAccountName" />
ele = (HTMLInputElement)doc.all.item("theAccountName", 0);
ele.value = theAccountName;

to enter the user name and password, and:
//<input border="0" width="0" height="0" type="image" name="1.Continue" />
b.Document.GetElementById("1.Continue").InvokeMember("click");

to click the button.

I originally had done it a different way using the info on this site http://www.dreamincode.net/forums/to...grammatically/ but it stopped working after some time for some reason, and I like my way better anyway.

edit: theAccountName, and theAccountPW are variables containing strings of the account and password. b is my webBrowser object. I have already navigated to the correct page using the Navigate() method. and the commented html code is from the source code from the website I was logging into programmatically

i eventually succumbed and added a webcontrol to the app to login and set the cookies. However, the one problem i have now is that i cant seem to do a refresh without it looking at the cache the page i get never changes. any ideas?