+
+  } elsif ($type =~ /^(part|service|assembly|assortment)$/) {
+    $filters{trans_number}  = "partnumber";
+    my %numberfield_hash = ( service    => 'servicenumber',
+                             assembly   => 'assemblynumber',
+                             assortment => 'assortmentnumber',
+                             part       => 'articlenumber'
+                           );
+    $filters{numberfield}   = $numberfield_hash{$type};
+    $filters{table}         = "parts";
+  } elsif ($type =~ /letter/) {
+    $filters{trans_number}  = "letternumber";
+    $filters{numberfield}   = "letternumber";
+    $filters{table}         = "letter";