How can i know if somebody is invulnerable by using 'if' ?

if( dude.invul ) (example)

Thanks

if ( mobile.Enabled("invul") )

http://docs.polserver.com/pol097/objref.php#Character

afaik object.invul works too even if the documentation doesnt mention that. Should run some tests, because it has been working before so I dont see a reason why it shouldn't work now.