// JavaScript Document
function ativaPopup(){
    classe = document.getElementById('sitemap').className; 
    if(classe == 'mostra'){
       document.getElementById('sitemap').className = 'esconde';
   }else{
       document.getElementById('sitemap').className = 'mostra';
   }
}
function faceBook(){
	document.getElementById('facebook').allowTransparency = true; 	
}