<?php

$domDoc = domxml_open_file('data.xml');

$runs = $domDoc->get_elements_by_tagname('Run');

$menuitems = array();


$count = 0;
$run = $runs[$_GET['id']];

$positions = $run->get_elements_by_tagname('Position');
echo "[";
$first = 0;
foreach ($positions as $position) {
  if ($first) echo ",\n";
  echo "[";
  $lat = $position->get_elements_by_tagname('Latitude');
  echo $lat[0]->get_content();
  echo ",";
  $long = $position->get_elements_by_tagname('Longitude');
  echo $long[0]->get_content();
  echo "]";
  $first = 1;
}
echo "]";