diff -ubBrN com2/comas/examples/templates/icgtmp/attendees/new.tmpl com3/comas/examples/templates/icgtmp/attendees/new.tmpl
--- com2/comas/examples/templates/icgtmp/attendees/new.tmpl	2005-08-05 09:12:57.000000000 +0300
+++ com3/comas/examples/templates/icgtmp/attendees/new.tmpl	2005-08-05 17:47:03.000000000 +0300
@@ -2,6 +2,8 @@
 
 <h1>New account registration</h1>
 		
+<TMPL_IF NAME="-allow_registrations">
+	
 <form method="post" action="<TMPL_VAR NAME=comas_url>/attendees/new">
 <input type="hidden" name="validate" value="1">
 
@@ -239,5 +241,9 @@
 onClick=location.href="<TMPL_VAR NAME=comas_url>">
 </center>
 </form>
+<TMPL_ELSE>
+The registration period has expired. If you want to be considered for late registration please write to the organizing committee directly.
+</TMPL_IF>
+
 
 <TMPL_INCLUDE NAME="../footer.tmpl">
diff -ubBrN com2/comas/perl/Comas/Conf.pm com3/comas/perl/Comas/Conf.pm
--- com2/comas/perl/Comas/Conf.pm	2005-08-05 09:12:58.000000000 +0300
+++ com3/comas/perl/Comas/Conf.pm	2005-08-05 17:43:36.000000000 +0300
@@ -122,6 +122,8 @@
 
 B<proposals_new_max_date>: 1980-01-01 00:00
 
+B<registrations_new_max_date>: 1980-01-01 00:00
+
 B<smtp_host>: localhost
 
 B<proposals_max_rate>: 5
@@ -268,6 +270,7 @@
 		 'max_authors_x_proposal' => ['The limit of authors per proposal', '0'],
 		 'max_proposals_x_person' => ['The limit of proposals per person','0'],
 		 'proposals_new_max_date' => ['The last date for sending a proposal, the format is YYYY-MM-DD HH:MM (in 24 hours style)', '1980-01-01 00:00'],
+		 'registrations_new_max_date' => ['The last date for registering, the format is YYYY-MM-DD HH:MM (in 24 hours style)', '1980-01-01 00:00'],
 		 'priv_person_types' => ['The privileged person types (an administrator should set this in a person), separated by ,', '4'],
 		 'proposal_modif_mail_from' => ['Address with which to send the mail to the academic committee when the proposal is modified by the author', 'comas@localhost.localdomain'],
 		 'smtp_host' => ['SMTP server', 'localhost'],
diff -ubBrN com2/comas/perl/Comas/HTML/attendees.pm com3/comas/perl/Comas/HTML/attendees.pm
--- com2/comas/perl/Comas/HTML/attendees.pm	2005-08-05 09:12:59.000000000 +0300
+++ com3/comas/perl/Comas/HTML/attendees.pm	2005-08-05 17:45:53.000000000 +0300
@@ -176,6 +176,12 @@
 		     );
 
     $template->param($h->{-params});
+		if (Comas::Person->days_left_for_registration(-db=>$h->{-db}) <= 0) {
+      $template->param(-allow_registrations => 0);
+    } else {
+      $template->param(-allow_registrations => 1);
+    }
+
     return $template->output;
 }
 
diff -ubBrN com2/comas/perl/Comas/Person.pm com3/comas/perl/Comas/Person.pm
--- com2/comas/perl/Comas/Person.pm	2005-08-05 09:12:58.000000000 +0300
+++ com3/comas/perl/Comas/Person.pm	2005-08-05 17:44:40.000000000 +0300
@@ -824,6 +824,28 @@
     return $ret;
 }
 
+sub days_left_for_registration {
+    my ($p, $db, $sth);
+    $p = shift;
+
+    if (ref $p) {
+  $db = $p->{-db};
+    } elsif ($p eq '-db' or shift eq '-db') {
+  $db = shift;
+    } else {
+  carp 'Invocation error';
+  return undef;
+    }
+
+    unless ($sth = $db->prepare('SELECT days_for_new_registrations()') and
+      $sth->execute) {
+  carp 'Could not execute query: ', $db->lastMsg;
+  return undef;
+    }
+
+    return $sth->fetchrow_array;
+}
+
 
 1;
 
diff -ubBrN com2/comas/sql/functions.sql com3/comas/sql/functions.sql
--- com2/comas/sql/functions.sql	2005-08-05 09:12:59.000000000 +0300
+++ com3/comas/sql/functions.sql	2005-08-05 17:42:48.000000000 +0300
@@ -444,6 +444,26 @@
 LANGUAGE 'plpgsql';
 
 -- #############################################################################
+-- days_for_new_registrations
+-- Returns the number of days (including the last day) users still have for 
+-- registering for the conference. If the period for registrations is over,
+-- it will return a negative value.
+-- Note that this is good only for getting the number of DAYS - it does not take
+-- into account the hour. 0 means that today is the last day, but does not show
+-- if the period is closed or open.
+CREATE OR REPLACE FUNCTION days_for_new_registrations () returns integer AS
+'DECLARE
+	max_date date;
+BEGIN
+	-- We handle max_date and cast now() to a date in order to get the
+	-- number of days as an integer and avoid jumping through hoops.
+	SELECT INTO max_date value::date FROM config WHERE 
+		name = ''registrations_new_max_date'';
+	RETURN max_date - now()::date;
+END;'
+LANGUAGE 'plpgsql';
+
+-- #############################################################################
 -- lock_proposals_before_accepted
 -- Dont't update a proposal if it have been acepted, unless the change is
 -- limited to changing the proposal's status or rescheduling it (either