Switch to side-by-side view

--- a/tool/run/plugins/spdx/show.java
+++ b/tool/run/plugins/spdx/show.java
@@ -68,6 +68,21 @@
                 counterLicensesDeclared = 0
                 ;
         
+        // no products found..
+        if(core.products.isEmpty()){
+            String result = ""
+                    + html.div()
+                    + html.br
+                    + "It seems that no SPDX files were yet added."
+                    + html.br
+                    + html.br
+                    + "Would you like to "
+                    + html.link("create one", "/spdx/create")
+                    + " right now?"
+                    + html._div;
+            request.setAnswer(result);
+            return;
+        }
         
         // get some statistical data
         for(Object object : core.products){