ok, i have a website and I have a reseller website. when someone clicks the link on the reseller website and it takes the user to my website I want to record it and give that user an ID number to store in a table along with the IP. That way if the make a purchase from my website I can insert the id number and know it was from the reseller site. I have access to use php, but I've never setup anything like this. Any suggestions?