modify wp traffic tools plugin - advertising module

Avg Bid (USD)
Project Budget (USD)
$30 - $100

Project Description:
I need someone who modifies for me the plugin wp traffic tools as I describe here:
you can add Keyword Detection Profiles and there you add keywords, which have to be in your referring url.
If the keywords where detected in the referring url, an ad is displayed. The problem is that the detection works for external urls (searchengines) AND internal urls (my domain) at the same time. There`s no way to restrict the function to only work for urls coming from outside my domain.

I want you to modify the plugin in the way that I have an extra checkbox where I can exclude my own domain from being included into Keyword Detection Profiles.

Skills required:
PHP, Wordpress
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