function doUpdate() {
	// Cache my del.icio.us bookmarks.
        $tmpfix ="http://timtux.net/inc/rssreader.php?feed=delicious";
	$filename 	= "inc/cache-delicious.php";
	$rsscontent	= file_get_contents($tmpfix);
	
	if (is_writable($filename)) {
		$handle = fopen($filename, 'w+');
		fwrite($handle, $rsscontent);
		fclose($handle);
	} 
		
	// Cache my dugged stories.
	$tmpfix ="http://timtux.net/inc/rssreader.php?feed=digg";
	$filename 	= "inc/cache-digg.php";
	$rsscontent	= file_get_contents($tmpfix);

	if (is_writable($filename)) {
		$handle = fopen($filename, 'w+');
		fwrite($handle, $rsscontent);
		fclose($handle);
	} 

}