Here's the thing:
1) Display traffic arrives to my landingpage with a few parameters in it, for example:
example.com?ACID=123
2) On that landingpage, I have a link to the offer page, which has google analytics tracking parameters in it, such as here:
offer.com/?utm_source=x&utm_medium=y&utm_content=z
3) I would like to dynamically add the parameters from 1) into the link on page 2), so in this example the new link would look like this:
offer.com/?utm_source=x&utm_medium=y&utm_content=123
Since the offer page is owned by me, I just need the parameters from the traffic source passed on to my google analytics account.
I'm sure there are 1million scripts for that, but I couldn't anything yet.