function mostraEsconde(id){
     var obj = document.getElementById(id);
     fecharTodas(obj.parentNode,id);//pasando a tabela e o id
     if(obj.style.display == "none"){
         obj.style.display = "";
     }else{
         obj.style.display = "none";
     }
}
function fecharTodas(tabela,idAtual){
    var trs = document.getElementsByTagName('tr');
    for(i=0;i<trs.length;i++){
        if(trs[i].id != "" && trs[i].id != idAtual){
            trs[i].style.display = "none";
        }
    }
}