Added support for displaying fields without choosing a value.

db/avail

@@ -25,15 +25,13 @@ print "Got ARGS = ",join(" ",@ARGV),"\n" if $d;
 my %args = ();
 while ($#ARGV >= 0) {
   $_ = shift;
-  if ( ! grep '=' ) {
-    $args{$_}='=';
+  if ( ! /=/ ) { $args{$_}='='; } else {
+    @_ = split('=',$_);
+    my ($opt,$val) = @_ if ($#_ >= 0);
+    if (!defined($val)) { $val=""; }
+    $args{$opt}=$val if (defined($opt));
   }
-  @_ = split('=',$_);
-  my ($opt,$val) = @_ if ($#_ >= 0);
-  if (!defined($val)) { $val=""; }
-  $args{$opt}=$val if (defined($opt));
 }
-
 if ( $d ) {
   print "Parsed args to:\n";
   foreach my $opt (keys %args) {
@@ -46,21 +44,23 @@ my $cols= "a.node_id,a.type";
 my $cond= "b.node_id is null and a.type!='switch'";
 my $img = 0;
 
-if (defined($args{"type"})) { $cond .= " and a.type='".$args{"type"}."'"; }
+if (defined($args{"type"})) { 
+  $cond .= " and a.type='".$args{"type"}."'" if $args{"type"} ne '='; 
+}
 if (defined($args{"OS"})) { 
   $img = 1;
   $cols .= ",d.OS";
-  $cond .= " and d.OS='".$args{"OS"}."'"; 
+  $cond .= " and d.OS='".$args{"OS"}."'" if $args{"OS"} ne '='; 
 }
 if (defined($args{"ver"})) { 
   $img = 1;
   $cols .= ",d.ver";
-  $cond .= " and d.ver='".$args{"ver"}."'"; 
+  $cond .= " and d.ver='".$args{"ver"}."'" if $args{"ver"} ne '='; 
 }
 if (defined($args{"extras"})) { 
   $img = 1;
   $cols .= ",d.extras";
-  $cond .= " and d.extras='".$args{"extras"}."'"; 
+  $cond .= " and d.extras='".$args{"extras"}."'" if $args{"extras"} ne '='; 
 }
 #if (defined($args{"fixes"})) {
 #  $join .= "";