diff --git a/version1.0/nasal_var.cpp b/version1.0/nasal_var.cpp
index 474e839..e2cce7e 100644
--- a/version1.0/nasal_var.cpp
+++ b/version1.0/nasal_var.cpp
@@ -50,4 +50,12 @@ nasal_hash::nasal_hash(const nasal_hash& temp)
 	elem_name=temp.elem_name;
 }
 
+nasal_function::nasal_function()
+{
+	root.clear();
+}
+nasal_function::nasal_function(const nasal_function& temp)
+{
+	root=temp.root;
+}
 #endif
diff --git a/version1.0/nasal_var.h b/version1.0/nasal_var.h
index 8239384..3695d39 100644
--- a/version1.0/nasal_var.h
+++ b/version1.0/nasal_var.h
@@ -10,7 +10,8 @@ enum var_type
 	var_number,
 	var_string,
 	var_list,
-	var_hash
+	var_hash,
+	var_function
 };
 
 class nasal_list;
@@ -46,4 +47,13 @@ class nasal_hash
 		nasal_hash(const nasal_hash&);
 };
 
+class nasal_function
+{
+	private:
+		std::list<ast_tree_node> root;
+	public:
+		nasal_function();
+		nasal_function(const nasal_function&);
+};
+
 #endif