Create redirect script - Is this possible?

Creating a php redirect script is fairly easy...I am looking for a better solution to hide the aff url in its destination... IE: [login to view URL] > [login to view URL] These types of links are red flags..either other affiliates swap your ID, or people just do not buy if they see? the affiliate link. is it possible to hide the destination affiliate url in a cookie or something so the destination url looks like: [login to view URL] > [login to view URL] but I still get credit for the clickbank sale... Is this possible?