function transform_login()
{
	var password = document.getElementById('password').value;
	var salt = document.getElementById('special_sauce').value;

	var hash = sha1Hash(sha1Hash(password) + salt);
	var fake_pass = randomString(password.length);
	document.getElementById('hashed_pw').value = hash;
	document.getElementById('password').value = fake_pass;
}

function randomString(len)
{
	var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz";
	var randomstring = '';
	for (var i=0; i<len; i++)
	{
		var rnum = Math.floor(Math.random() * chars.length);
		randomstring += chars.substring(rnum,rnum+1);
	}
	return randomstring;
}

function emptyFields()
{
	document.getElementById('password').value = "";
	document.getElementById('username').value = "";
}