diff --git a/module/program/js/prjcreate.js b/module/program/js/prjcreate.js
index 9f4fdc26ee..f3d5b6440e 100644
--- a/module/program/js/prjcreate.js
+++ b/module/program/js/prjcreate.js
@@ -36,13 +36,13 @@ function addNewProduct(obj)
     {
         $('#productName').closest('tr').removeClass('hidden');
         $('#plans').closest('tr').addClass('hidden');
-        $('#productsBox .chosen-container').attr('disabled',true);
+        $(obj).closest('.input-group').find('select').attr('disabled', true).trigger("chosen:updated");
     }
     else
     {
         $('#productName').closest('tr').addClass('hidden');
         $('#plans').closest('tr').removeClass('hidden');
-        $('#productsBox .chosen-container').removeAttr('disabled',true);
+        $(obj).closest('.input-group').find('select').removeAttr('disabled').trigger("chosen:updated");
     }
 }
 
diff --git a/module/program/model.php b/module/program/model.php
index 220559f8cc..22b6d838b5 100644
--- a/module/program/model.php
+++ b/module/program/model.php
@@ -1222,9 +1222,12 @@ class programModel extends model
 
             /* Judge products not empty. */
             $linkedProductsCount = 0;
-            foreach($_POST['products'] as $product)
+            if(isset($_POST['products']))
             {
-                if(!empty($product)) $linkedProductsCount++;
+                foreach($_POST['products'] as $product)
+                {
+                    if(!empty($product)) $linkedProductsCount++;
+                }
             }
 
             if(empty($linkedProductsCount) and !isset($_POST['newProduct']))