function fun_get_element(element_id){obj_get_element = (document.all) ? document.all[element_id] : document.getElementById(element_id);return obj_get_element;}
function Item(rot,lnk,trg){this.rotulo = rot;this.link = lnk;this.target = trg;}

function trocaCSS(whichElement, whichStyle){
	var block;
	block = fun_get_element(whichElement).style.className = whichStyle;
}
function sL(layerName){
	fun_get_element(layerName).style.display = 'block';
}
function hL(layerName){
	fun_get_element(layerName).style.display = 'none';
}
function getCookie(name) {
  var dc = document.cookie;
  var prefix = name + "=";
  var begin = dc.indexOf("; " + prefix);
  if(begin == -1) {
    begin = dc.indexOf(prefix);
    if (begin != 0) return null;
  }else
    begin += 2;
  var end = document.cookie.indexOf(";", begin);
  if (end == -1)
    end = dc.length;
  return unescape(dc.substring(begin + prefix.length, end));
}