Metacat

/*

License:      LGPL as per: http://www.gnu.org/copyleft/lesser.html

$Id: LanguageUtils.js 3874 2008-02-27 11:03:22Z gjvoosten $

*/

// Supported languages

var supportedLanguages = new Object();

{

  supportedLanguages["en"] = "English";

  supportedLanguages["nl"] = "Nederlands";

  supportedLanguages["fr"] = "Fran\u00E7ais";

  supportedLanguages["it"] = "Italiano";

  supportedLanguages["de"] = "Deutsch";

  supportedLanguages["es"] = "Espa\u00F1ol";

  // Also add as an example an unsupported language to show the fallback

  supportedLanguages["nonesuch"] = "unsupported language";

}

var language = "en"; // Default to English

/**

 * Set the language for a page by getting it from the page parameters

 */

function setLanguage()

{

  var parms = getParameters();

  if (parms["language"] && supportedLanguages[parms["language"]]) {

    language = parms["language"];

  }

}

/**

 * Write out the HTML with hrefs for changing the language of the page

 * @param flagsDirUrl the (relative) url of the directory containing the flag images

 */

function writeOutLanguages(flagsDirUrl)

{

  for (var i in supportedLanguages) {

    document.write(" ");

    if (language != i) {

      document.write('<a href="?language=' + i + '">');

    }

    document.write('<img src="' + flagsDirUrl + '/' + i +

      '.png" title="' + supportedLanguages[i] + '"/>');

    if (language != i) {

      document.write('</a>');

    }

  }

}

/**

 * Get the page parameters

 * @return an object with the parameter names as fields and the parameter values

 *         as the corresponding values

 */

function getParameters()

{

  var args = new Object();

  var query = location.search.substring(1);

  var pairs = query.split("&");

  for (var i in pairs) {

    var pos = pairs[i].indexOf('=');

    if (pos == -1) continue;

    var argname = pairs[i].substring(0, pos);

    var value = pairs[i].substring(pos + 1);

    args[argname] = unescape(value.replace(/\+/g, " "));

  }

  return args;

}