i am developing an online mapping application using OpenLayers + OpenStreetMaps.

i need help implementing a simple reverse geocoding function in javascript (or php) that receives Latitude and Longitude and returns an Address.

i would like to work with Nominatim, if possible. i do NOT want to use Google, Bing or CloudMade or other proprietary solutions.

this link returns a reasonable response and i used simple_html_dom.php to break down the result but it is sort of an ugly solution.

<?php

include('simple_html_dom.php');

$url = "http://nominatim.openstreetmap.org/reverse?format=xml&lat=-23.56320001&lon=-46.66140002&zoom=27&addressdetails=1";
$html = file_get_html($url);
foreach ($html->find('road') as $element ) {
    echo $element;
}

?>  

any suggestions of a more elegant solution?