$session[sessionurl] versus $session[sessionurl_q]

[JamesAB]

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OOPS! I posted this in the wrong forum.
This question is in regard to VB3.
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I see that the FORUMHOME template uses both versions of this.

What is the difference between $session[sessionurl] and $session[sessionurl_q] ?

What is the rule for when to use $session[sessionurl] and when to use $session[sessionurl_q] ?

Thanks,
James