function queryString(parameter) { 
  var loc = location.search.substring(1, location.search.length);
  var param_value = false;
  var params = loc.split("&");
  for (i=0; i<params.length;i++) {
      param_name = params[i].substring(0,params[i].indexOf('='));
      if (param_name == parameter) {
          param_value = params[i].substring(params[i].indexOf('=')+1)
      }
  }
  if (param_value) {
      return unescape(param_value);
  }
  else {
      return false; //Here determine return if no parameter is found
  }
}

function token(site_id, name, callbackfn) {
     /* Determine web service address */
     var address = location.protocol + "//" + location.host + "/service/tokens";

     /* Formulate the request */
     var xmlvalue = '<?xml version="1.0" encoding="UTF-8"?><TokensRequest><SiteId>'+site_id+"</SiteId><Token>"+name+"</Token></TokensRequest>";
     var request = 'xmlsrc=' + encodeURIComponent(xmlvalue);

     /* Make the request */
    new Ajax.Request(address, {
        method: 'post',
        parameters: request,
        onSuccess: function(response) {
               var parser = new RegExp("<"+name+"><\!.CDATA.(.*?)\]\]><\/"+name+">");
               var response_text = response.responseText.replace(/\n/g,"").replace(/\r/g,"");
               var value = response_text.match(parser);
               if (value == null)
                  callbackfn('');
               else
                  callbackfn(value[1]);
        }
    });
}

function loadNoteTypes() {  
	$('note_NoteType').options.length = 0; 
   	$('note_NoteType').options.add(new Option('Loading…', ''));
	token(document.site_id, 'COLTRANS_NOTETYPE', loadNoteTypesCallback);
}

function loadNoteTypesCallback(token_value) {
	$('note_NoteType').options.length = 0; 
	if (token_value.blank())
		return;

	values = token_value.split('|');
	values.each(function(value) {
		params = value.split(';');
		$('note_NoteType').options.add(new Option(params[1], params[0].gsub('#','')));
	});
	loadNoteType2s();
}

function loadNoteType2s() {
	$('note_NoteType2').options.length = 0;
	$('note_NoteType2').options.add(new Option('Loading…', ''));
	var notetype = $('note_NoteType').getValue();

	token(document.site_id, 'COLTRANS_NOTETYPE2_' + notetype, loadNoteType2sCallback);
}

function loadNoteType2sCallback(token_value) {
	$('note_NoteType2').options.length = 0;
	if (token_value.blank())
		return;

	values = token_value.split('|');
	values.each(function(value) {
		params = value.split(';');
		$('note_NoteType2').options.add(new Option(params[1], params[0].gsub('#','')));
	});
}