printf("Expires: 0\r\n");
printf("Content-type: text/html\r\n\r\n");
printf("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 3.2//EN\">\n");
printf("Expires: 0\r\n");
printf("Content-type: text/html\r\n\r\n");
printf("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 3.2//EN\">\n");