Pass/protect

Alright i’
m working on a new flash site witch will have a password protected section… i was looking at the tutorials on how to do so on this site and others and alot use just a simple if then cmd… my problem is i find it looks amature i would like to know how it is possible to have a member lof in and stay logged into my site until he exits it… in other words if he goes to another part of the site, he is still logged in… sorry about the spelling i’m in a hurry no time to spell check…

thx,
footballbeasst!