AJAX :: Getting Headlines - Handle Mapping

as u discuss pervoius thread but no answer me that i want headlines of newspaper [URL] i am succesedin getting the page html by using

<?php
$homepage = file_get_contents('http://www.express.com.pk');
$abc=str_replace("../","http://www.express.com.pk/",$homepage);
$abd=str_replace("PoPupwindow","http://www.express.com.pk/epaper/PoPupwindow",$abc);
echo $abd;
?>

but there is still problem i faced that i want only headlines not whole page i think it can be get by open popwindow or else any one can tell me how to handle mapping if i want to show only one in javascipt.