Log In and Log Out

[puertoblack2003]

hey guys i need help here i'm trying to figure this out i trying to put the script

<li><a href="login.php?$session[sessionurl]do=logout&amp;logouthash=$bbuserinfo[logouthash]" onclick="return log_out()"><phrase 1="$bbuserinfo[username]">$vbphrase[log_out_x]</phrase></a></li>

at the bottom of the page in a small box now it works but when i log out it shows

log out unregister

can anybody help me.