All Vb <if> conditions

[mihai11]

Hi,

I would like to learn more about the conditions that I can use in VB templates. For example, I am aware of the following tests:

<if condition="$show['guest']">You're a guest!</if>

<if condition="$show['member']">You're a member, not a guest</if>

How can I find out what other tests I can perform with the variable "$show" ?
For example, can I use it to find out if the user browsing the page is an administrator ?

If the answer is "yes", then how did you knew how to build the test condition ?

Regards,
Razvan