--- a/lib/graphs.inc.php
+++ b/lib/graphs.inc.php
@@ -7,6 +7,7 @@
     <script language="javascript" type="text/javascript" src="lib/flot/jquery.flot.js"></script> 
         <script language="javascript" type="text/javascript" src="lib/flot/jquery.flot.pie.js"></script> 
               <script language="javascript" type="text/javascript" src="lib/flot/jquery.flot.selection.js"></script> 
+              <script language="javascript" type="text/javascript" src="lib/flot/jquery.flot.stack.js"></script> 
 
 ';
 $includedFlot = true;
@@ -23,8 +24,9 @@
 	 $(function () {
 
  var d1 = [];
+ var d2 = [];
 <?php
-$query = 'select cnid, count(*) from (select ("CNID" - MOD("CNID",100)) as cnid from contractnotice where "CNID" < 999999) as a group by cnid order by cnid';
+$query = 'select cnid, count(*) from (select ("CNID" - MOD("CNID",100)) as cnid from contractnotice where "CNID" < 999999 and "parentCN" is null) as a group by cnid order by cnid';
 $query = $conn->prepare($query);
 $query->execute();
 if (!$query) {
@@ -35,6 +37,18 @@
 foreach ($query->fetchAll() as $delta) {
 
 	echo "d1.push([ ".intval($delta['cnid']).", ".intval($delta['count'])."]); \n";
+};
+$query = 'select cnid, count(*) from (select ("CNID" - MOD("CNID",100)) as cnid from contractnotice where "CNID" < 999999 and "parentCN" is not null) as a group by cnid order by cnid';
+$query = $conn->prepare($query);
+$query->execute();
+if (!$query) {
+	databaseError($conn->errorInfo());
+	return Array();
+}
+
+foreach ($query->fetchAll() as $delta) {
+
+	echo "d2.push([ ".intval($delta['cnid']).", ".intval($delta['count'])."]); \n";
 };
 ?>
 
@@ -47,10 +61,20 @@
                },
             bars: { show: true }
         },
+       {
+            data: d2,
+series: {
+                   lines: { show: true },
+                   points: { show: true }
+               },
+            bars: { show: true }
+        },
     ];
     var options = 
     {
-
+series: {
+                stack: true,
+            },
             grid: { hoverable: true, clickable: true, labelMargin: 17  },
             selection: { mode: "x" }
     };