diff -urN cui96/cui.c cui97/cui.c
--- cui96/cui.c	Tue Apr  1 23:00:00 2014
+++ cui97/cui.c	Wed Apr  2 01:20:00 2014
@@ -8,6 +8,7 @@
 #include "label.h"
 #include "button.h"
 #include "timer.h"
+#include "list.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -452,44 +453,44 @@
 	return FD_ISSET(fd, &res_rfs);
 }
 
-typedef struct cui_readable_list *cui_readable_list;
-
-struct cui_readable_list{
+typedef struct cui_readable{
 	cui obj;
 	int fd;
-	cui_readable_list next;
-};
+} *cui_readable;
 
-cui_readable_list readable_list = NULL;
+static cui_list readable_list = NULL;
 
 static void
 cui_readable_select_setup(void)
 {
-	cui_readable_list p = readable_list;
+	cui_list lp = readable_list;
 	cui_select_init();
-	for(; p; p=p->next) cui_select_add(p->fd);
+	for(; lp; lp=lp->next){
+		cui_readable p = (cui_readable)lp->data;
+		cui_select_add(p->fd);
+	}
 }
 
 void
 cui_readable_add(cui obj, int fd)
 {
-	cui_readable_list p;
-	if((p = malloc(sizeof(struct cui_readable_list))) == NULL) ERR("No Mem");
+	cui_readable p = cui_list_add(&readable_list, sizeof(struct cui_readable));
 	p->obj = obj;
 	p->fd = fd;
-	p->next = readable_list;
-	readable_list = p;
 	cui_readable_select_setup();
 }
 
 void
 cui_readable_del(cui obj, int fd)
 {
-	cui_readable_list p = readable_list, *prev = &readable_list;
-	for(; p; prev=&p->next, p=p->next) if(p->obj == obj && p->fd == fd) break;
-	if(p == NULL) return;
-	*prev = p->next;
-	free(p);
+	cui_list lp = readable_list;
+	cui_readable p;
+	for(; lp; lp=lp->next){
+		p = (cui_readable)lp->data;
+		if(p->obj == obj && p->fd == fd) break;
+	}
+	if(lp == NULL) return;
+	cui_list_del(&readable_list, p);
 	cui_readable_select_setup();
 }
 
@@ -503,8 +504,9 @@
 static void
 cui_readable_work(void)
 {
-	cui_readable_list p = readable_list;
-	for(; p; p=p->next){
+	cui_list lp = readable_list;
+	for(; lp; lp=lp->next){
+		cui_readable p = (cui_readable)lp->data;
 		if(!cui_select_chk(p->fd)) continue;
 		cui_handler_call(p->obj, CUI_EVT_READABLE, p->fd);
 	}