diff --git a/version1.0/nasal.h b/version1.0/nasal.h
index 73cc2d4..e8151e6 100644
--- a/version1.0/nasal.h
+++ b/version1.0/nasal.h
@@ -11,6 +11,7 @@
 #include "nasal_token_type.h"
 #include "abstract_syntax_tree.h"
 #include "nasal_var.h"
+#include "nasal_var_inrun_list.h"
 
 #include "nasal_lexer.h"
 #include "nasal_parser.h"
diff --git a/version1.0/nasal_var.cpp b/version1.0/nasal_var.cpp
index e2cce7e..7c17c50 100644
--- a/version1.0/nasal_var.cpp
+++ b/version1.0/nasal_var.cpp
@@ -15,6 +15,7 @@ var::var(const var& temp)
 		case var_string:ptr=new std::string;*((std::string*)ptr)=*((std::string*)temp.ptr);break;
 		case var_list:ptr=new nasal_list;*((nasal_list*)ptr)=*((nasal_list*)temp.ptr);break;
 		case var_hash:ptr=new nasal_hash;*((nasal_hash*)ptr)=*((nasal_hash*)temp.ptr);break;
+		case var_function:ptr=new nasal_function;*((nasal_function*)ptr)=*((nasal_function*)temp.ptr);break;
 	}
 	type=temp.type;
 }
@@ -27,8 +28,35 @@ var::~var()
 		case var_string:delete (std::string*)ptr;break;
 		case var_list:delete (nasal_list*)ptr;break;
 		case var_hash:delete (nasal_hash*)ptr;break;
+		case var_function:delete (nasal_function*)ptr;break;
 	}
 }
+var& var::operator=(const var& temp)
+{
+	if(ptr)
+	{
+		switch(type)
+		{
+			case var_null:break;
+			case var_number:delete (double*)ptr;break;
+			case var_string:delete (std::string*)ptr;break;
+			case var_list:delete (nasal_list*)ptr;break;
+			case var_hash:delete (nasal_hash*)ptr;break;
+			case var_function:delete (nasal_function*)ptr;break;
+		}
+	}
+	switch(temp.type)
+	{
+		case var_null:ptr=NULL;break;
+		case var_number:ptr=new double;*((double*)ptr)=*((double*)temp.ptr);break;
+		case var_string:ptr=new std::string;*((std::string*)ptr)=*((std::string*)temp.ptr);break;
+		case var_list:ptr=new nasal_list;*((nasal_list*)ptr)=*((nasal_list*)temp.ptr);break;
+		case var_hash:ptr=new nasal_hash;*((nasal_hash*)ptr)=*((nasal_hash*)temp.ptr);break;
+		case var_function:ptr=new nasal_function;*((nasal_function*)ptr)=*((nasal_function*)temp.ptr);break;
+	}
+	type=temp.type;
+	return *this;
+}
 
 nasal_list::nasal_list()
 {
diff --git a/version1.0/nasal_var.h b/version1.0/nasal_var.h
index 3695d39..31d3b0b 100644
--- a/version1.0/nasal_var.h
+++ b/version1.0/nasal_var.h
@@ -26,6 +26,7 @@ class var
 		var();
 		var(const var&);
 		~var();
+		var& operator=(const var& temp);
 };
 
 class nasal_list
diff --git a/version1.0/nasal_var_inrun_list.h b/version1.0/nasal_var_inrun_list.h
new file mode 100644
index 0000000..5a9cd7e
--- /dev/null
+++ b/version1.0/nasal_var_inrun_list.h
@@ -0,0 +1,77 @@
+#ifndef __NASAL_VAR_INRUN_STACK_H__
+#define __NASAL_VAR_INRUN_STACK_H__
+
+struct var_list_unit
+{
+	std::string var_name;
+	int num_place;
+};
+
+class nasal_var_map
+{
+	private:
+		std::list<var_list_unit> var_list;
+		int var_number;
+	public:
+		nasal_var_map()
+		{
+			var_list.clear();
+			var_number=0;
+		}
+		void add_var(std::string& __str)
+		{
+			var_list_unit t;
+			t.var_name=__str;
+			for(std::list<var_list_unit>::iterator i=var_list.begin();i!=var_list.end();++i)
+			{
+				if(i->var_name==__str)
+					return;
+			}
+			++var_number;
+			t.num_place=var_number;
+			var_list.push_back(t);
+			return;
+		}
+		int return_last_var_num_place()
+		{
+			std::list<var_list_unit>::iterator i=var_list.end();
+			--i;
+			return i->num_place;
+		}
+		void print_all_var()
+		{
+			for(std::list<var_list_unit>::iterator i=var_list.begin();i!=var_list.end();++i)
+				std::cout<<i->var_name<<": "<<i->num_place<<std::endl;
+			return;
+		}
+};
+
+struct in_run_list_unit
+{
+	var variable;
+	int num_place;
+	bool global;
+};
+
+class in_run_list
+{
+	private:
+		std::list<in_run_list_unit> var_list;
+	public:
+		void in_run_add_var(var& varia,int number,bool is_global)
+		{
+			in_run_list_unit t;
+			t.variable=varia;
+			t.num_place=number;
+			t.global=is_global;
+			var_list.push_back(t);
+			return;
+		}
+		void delete_last_var()
+		{
+			var_list.pop_back();
+			return;
+		}
+};
+
+#endif