--- loncom/interface/slotrequest.pm	2006/02/03 23:42:54	1.43
+++ loncom/interface/slotrequest.pm	2006/02/03 23:53:30	1.44
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler for requesting to have slots added to a students record
 #
-# $Id: slotrequest.pm,v 1.43 2006/02/03 23:42:54 albertel Exp $
+# $Id: slotrequest.pm,v 1.44 2006/02/03 23:53:30 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -498,7 +498,7 @@ STUFF
 }
 
 sub allowed_slot {
-    my ($slot_name,$slot,$symb)=@_;
+    my ($slot_name,$slot,$symb,$slots)=@_;
     #already started
     if ($slot->{'starttime'} < time) {
 	# all open slot to be schedulable
@@ -521,6 +521,12 @@ sub allowed_slot {
 	&& $slot->{'symb'} ne $symb) {
 	return 0;
     }
+    my $conflict = &check_for_conflict($symb,$slot_name,$slot,$slots);
+    if ($conflict) {
+	if ($slots->{$conflict}{'starttime'} < time) {
+	    return 0;
+	}
+    }
     &Apache::lonxml::debug("$slot_name symb good");
     return 1;
 }
@@ -550,7 +556,7 @@ sub show_choices {
 		      (keys(%slots)))  {
 
 	&Apache::lonxml::debug("Checking Slot $slot");
-	next if (!&allowed_slot($slot,$slots{$slot}));
+	next if (!&allowed_slot($slot,$slots{$slot},undef,\%slots));
 
 	$available++;