+ my @usage = @{$res->{'usage'}};
+ my $png = $usage[0]->{'png'};
+ { 'content' => $png, 'format' => 'png' };
+}
+
+sub view_port_graph {
+ my $svcnum = $cgi->param('svcnum');
+ { 'svcnum' => $svcnum,
+ 'start' => $cgi->param($svcnum.'_start'),
+ 'end' => $cgi->param($svcnum.'_end'),