All pageviews get flagged as direct traffic even when they are coming from google

[healthinfonet]

Thank you for this great piece of code - it has saved me a lot of heartache as my PDF's were not being tracked in google analytics.

However, the issue I have, and I hope that can be cleared up, is that when this code is activated, all the traffic is flagged as direct source even when I know if has come from a google search result.

Is there anyway we can fix this?

Thanks in advance.