function setCookie(c_name,value,expiredays){
          var exdate=new Date();
          exdate.setDate(exdate.getDate()+expiredays);
          document.cookie=c_name+ "=" +escape(value)+((expiredays==null) ? "" : ";expires="+exdate.toGMTString());
      }
      function acende_votos(){
         //alert( "executando" );
         var i=1;
         var div_voto=document.getElementById("opt"+i);
         while (div_voto!=null)
         {
         //alert(div_voto);
         div_voto.style.visibility="visible";
         i+=1;
         var div_voto=document.getElementById("opt"+i);
         }
      }