We have a tracking pixel on our shopping cart that reads data from the transaction confirmation screen and reports sales data to a 3rd party. The pixel also reports data held in a cookie on the consumers browser.
I want to place a 2nd third party pixel that will do the same thing, reporting when from the same transaction and a separate cookie. The catch is, I only want one of the two pixels to fire, depending on which cookie is the most recent on the users browser.
Does anybody know what type of script would do this, or if this is something I can pick up somewhere? Im obviously not a programmer and hope this isnt a stupid question.