var aAbas_c       = new Array();  // Lista de abas do documento atual
        var sAbaAtiva_c   = ""                 // Define qual é a aba ativa no momento
        var ABA_ID_c      = 1
        var ABA_BLOCO_c   = 2
        var ABA_CAMPOS_c  = 3
        
        function defineAba_c( sId_c, sBloco_c ){
           var aAba_c  = new Array( ABA_CAMPOS_c );
           aAba_c[ ABA_ID_c    ]  = sId_c;
           aAba_c[ ABA_BLOCO_c ]  = sBloco_c;
           aAbas_c.push( aAba_c );
        }

        function defineAbaAtiva_c( sId_c ){
           trataCliqueAba_c( sId_c );
        }

        function trataMouseAba_c( oAba_c ){
           oAba_c.style.cursor  = "pointer";
        }

        function trataCliqueAba_c( sId_c ){
           for ( var iAba_c  = 0; iAba_c < aAbas_c.length; iAba_c++ ){
              var aAba_c  = aAbas_c[ iAba_c ];

              if   ( aAba_c[ ABA_ID_c ] == sId_c ) ativaAba_c( aAba_c );

              else                           inativaAba_c( aAba_c );
           }
        }

        function ativaAba_c( aAba_c ){
           var sAba_c       = aAba_c[ ABA_ID_c ];
           var oAba_c       = document.getElementById( sAba_c );
           mudaClasse_c( oAba_c, "abaativa_contas" ); // Esse comando chama a classe css para fazer a troca

           var sBlocoAba_c  = aAba_c[ ABA_BLOCO_c ];
           var oBlocoAba_c  = document.getElementById( sBlocoAba_c );
           oBlocoAba_c.style.display  = "block";
        }

        function inativaAba_c( aAba_c ){
           var sAba_c       = aAba_c[ ABA_ID_c ];
           var oAba_c       = document.getElementById( sAba_c );
           mudaClasse_c( oAba_c, "abainativa_contas" ); // Esse comando chama a classe css para fazer a troca

           var sBlocoAba_c  = aAba_c[ ABA_BLOCO_c ];
           var oBlocoAba_c  = document.getElementById( sBlocoAba_c );
           oBlocoAba_c.style.display  = "none";
        }
        
        function mudaClasse_c( oObjeto_c, sClasse_c ){
           oObjeto_c.className = sClasse_c;
        }