About: http://webisa.webdatacommons.org/42238325

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	I understand that php is a server side script and javascript is a client side; but, is there any ???trick???� in php that can detect if the user clicks on the [x] on the browser? and if so, destroy/unset the session?
http://www.w3.org/ns/prov#wasQuotedFrom	bigresource.com