function transform_login() {
		var password = $('UserPasswd').value;
		var salt = $('special_sauce').value;
		
		var hash = sha1Hash(sha1Hash(password) + salt);
		var fake_pass = randomString(password.length);
		$('hashed_pw').value = hash;
		$('UserPasswd').value = fake_pass;
        $('special_sauce').value = randomString($('special_sauce').value.length)
	}
	
	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;
	}