Link Carrying over Variables

[NZ_Kiwis]

On one page I've got UserID, OrderID set with values, I want to link to another page but keeping these variables, How can i do this without doing mysecondpage.php?ID=x&ID2=y

[nevvermind]

Using $POST (you're using $GET, which parses into the URL) or $_SESSION.
You best bet is the latter.