diff --git a/parser/Node.h b/parser/Node.h
index 3d88e5c..e170172 100644
--- a/parser/Node.h
+++ b/parser/Node.h
@@ -14,6 +14,7 @@ class Node
         void addChildren(refptr<Node> other);
         std::vector< refptr<Node> > & getChildren() { return m_children; }
 
+        virtual unsigned long getInteger() { return 0ul; }
         virtual std::string getString() { return ""; }
 
     protected:
@@ -21,14 +22,20 @@ class Node
 };
 
 
+class IntegerNode : public Node
+{
+    public:
+        IntegerNode(unsigned long integer) { m_integer = integer; }
+        unsigned long getInteger() { return m_integer; }
+    protected:
+        unsigned long m_integer;
+};
+
 class StringNode : public Node
 {
     public:
         StringNode(const std::string & str) { m_string = str; }
-        std::string getString()
-        {
-            return m_string;
-        }
+        std::string getString() { return m_string; }
     protected:
         std::string m_string;
 };