<?php
require_once("../group.php");
session_start();

require_once("../common.php");
require_once("../globals.php");
require_once("../legend.php");
require_once("../custom.php");

$scale            = $_SESSION['geo_scale'];
$defGroups        = $_SESSION['defGroups'];
$useCategories    = $_SESSION['useCategories'];
$layerAutoRefresh = $_SESSION['layerAutoRefresh'];

if (isset($_GET['legendonly'])) {
    $legendonly = 1; 
    if (isset($_GET['swaplegend'])) {
        $method = "swapLegend";
    } else {
        $method = "showMapLegend";
    }
} else {
    $method = "updateToc";
}

$categories = $useCategories ? $_SESSION['categories'] : false;

$toc = new Legend($map, $categories, $legendonly);
$tocHTML = $toc->writeToc();

header("Content-Type: text/plain; charset=$defCharset");

// return JS object literals "{}" for XMLHTTP request 
echo "{method:'$method', tocHTML:'$tocHTML'}";

?>