vtoshach

Solved.   In case anyone else needs this:  I needed to append the URL with a session id.  Mine is actually called Sessiontab.  Where the zone is defined in the JS code, I added this to it:     &sessiontab=" + document.querySelector('[name=SESSIONTAB]').value);   So this is what it would look like:       document.write ("?zoneid=6&sessiontab=" + document.querySelector('[name=SESSIONTAB]').value);     On the adserver where I enter the information for the banner, I needed to add a variable to the URL.  It looks like this:       &sessiontab={sessiontab}   I used ampersand, because I already used a ? in the string.