connecting two plugins problem

Hello, l have two plugins l am using in my wp. l want to connect them each other or make another plugin from two of them with some mods, but l couldnt..

One: Title rewriter

<?php
/*
Plugin Name: Luke's Default Post Title for WP&micro;
Plugin URI: http://thunderlounge.com/wordpress/plugins/default-post-title.html
Description: Set a default post title below, and forget about it.
Author: Luke Poland
Author URI: http://thunderlounge.com/
Version: 1.0
Disclaimer: Use at your own risk. No warranty expressed or implied is provided.
*/

if ( !defined('ABSPATH') ) {
	die("I don't think so, Tim.");
}

/* -----     -----  USER EDIT AREA  -----     ----- */

// Replace 'Untitled Post' inside the quotes below with your default post title.
// If you muck it up, you should learn php. ;)
$tl_default_title = "Untitled Post";

function tl_KillBlankPosts($post_title) {
	global $tl_default_title;
	// Only touch post titles which are blank
	if( !empty($post_title) ) {
		return $post_title;
	} else {
		$post_title = $tl_default_title;
		return $post_title;
	}
	unset($tl_default_title);
}

add_filter('title_save_pre', 'tl_KillBlankPosts');

?>

Two: Post rewriter

<?php

$dic = array(
" a.m. " => " antemeridian ",
" Aachen " => " city ",
);

$url=ABSPATH."wp-content/plugins/rewriter/words.txt";

$lines=file($url);

$not_replace_list = " ";
foreach ($lines as $line_num => $line) {
    $not_replace_list = $not_replace_list.$line." ";
}

function rewrite_text( $article, $case_sensitive=false ) {
	global $dic;
	global $not_replace_list;

	$dorewrite=strpos($article,"<NOREWRITE>");
	if($dorewrite>0)
		{
		$article=str_replace("<NOREWRITE>","",$article);
		}
	else
	{

		$artarray=$article;
		 $step1 = array("(", ")", "[", "]", "?", ".", ",", "|", "\$", "*", "+", "^","{", "}");
		 $artarray=str_replace($step1," ",$artarray);
		 $artarray=str_replace("  "," ",$artarray);
		$words_artarray = explode(" ",$artarray);

		if (sizeof($words_artarray)>0)
		{
		for($i=0;$i<sizeof($words_artarray);$i++)
			{
			$to_be_replaced=$words_artarray[$i];
			$to_be_replaced=str_replace(" ","",$to_be_replaced);

			$ignore="no";
			if($to_be_replaced!="")
				{
				$pos=strpos($not_replace_list, $to_be_replaced);
				if($pos>0)
					{
					$ignore="yes";
					}
				}

			$to_be_replaced=" ".$to_be_replaced." ";
			$to_be_replaced_with=$dic[$to_be_replaced];
			if(($to_be_replaced!="")&amp;&amp;($to_be_replaced!=" ")&amp;&amp;($to_be_replaced_with!="")&amp;&amp;($ignore=="no"))
				{
				$article = str_replace($to_be_replaced,$to_be_replaced_with,$article);
				}
			}
		}
	}
	return $article;
}

function title($title)
{
$title=($title);
return $title;
}

add_filter('the_content', 'rewrite_text', 2);
add_filter('the_excerpt', 'rewrite_text', 2);
add_filter('the_title', 'title');
?>

My question is how can l make a plugin with these plugins that changes the titles of post each time with the keywords giwen in the plugin.