//MÁSCARA DE VALORES

function MascaraCEP(campo, teclaPress) {
  if (window.event){
    var tecla = teclaPress.keyCode;
  } else {
    tecla = teclaPress.which;
  }
  var s = new String(campo.value);
  s = s.replace(/(\.|\(|\)|\/|\-| )+/g,'');
  tam = s.length + 1;
  if (tam > 5 && tam < 7)
    campo.value = s.substr(0,5) + '-' + s.substr(5, tam);
}

function digitos(event){
  if (window.event) {
    // IE
    key = event.keyCode;
  } 
  else if (event.which) {
    // netscape
    key = event.which;
  }
  if (key != 8 || key != 13 || key < 48 || key > 57)
    return (((key > 47) && (key < 58)) || (key == 8 ) || (key == 13));
    return true;
}

function txtBoxFormat(objeto, sMask, evtKeyPress) {
        var i, nCount, sValue, fldLen, mskLen,bolMask, sCod, nTecla;


if(document.all) { // Internet Explorer
        nTecla = evtKeyPress.keyCode;
} else if(document.layers) { // Nestcape
        nTecla = evtKeyPress.which;
} else {
        nTecla = evtKeyPress.which;
        if (nTecla == 8) {
                return true;
        }
}

        sValue = objeto.value;

        // Limpa todos os caracteres de formatação que
        // já estiverem no campo.
        sValue = sValue.toString().replace( "-", "" );
        sValue = sValue.toString().replace( "-", "" );
        sValue = sValue.toString().replace( ".", "" );
        sValue = sValue.toString().replace( ".", "" );
        sValue = sValue.toString().replace( "/", "" );
        sValue = sValue.toString().replace( "/", "" );
        sValue = sValue.toString().replace( ":", "" );
        sValue = sValue.toString().replace( ":", "" );
        sValue = sValue.toString().replace( "(", "" );
        sValue = sValue.toString().replace( "(", "" );
        sValue = sValue.toString().replace( ")", "" );
        sValue = sValue.toString().replace( ")", "" );
        sValue = sValue.toString().replace( " ", "" );
        sValue = sValue.toString().replace( " ", "" );
        fldLen = sValue.length;
        mskLen = sMask.length;

        i = 0;
        nCount = 0;
        sCod = "";
        mskLen = fldLen;

        while (i <= mskLen) {
          bolMask = ((sMask.charAt(i) == "-") || (sMask.charAt(i) == ".") || (sMask.charAt(i) == "/") || (sMask.charAt(i) == ":"))
          bolMask = bolMask || ((sMask.charAt(i) == "(") || (sMask.charAt(i) == ")") || (sMask.charAt(i) == " "))

          if (bolMask) {
                sCod += sMask.charAt(i);
                mskLen++; }
          else {
                sCod += sValue.charAt(nCount);
                nCount++;
          }

          i++;
        }

        objeto.value = sCod;

        if (nTecla != 8) { // backspace
          if (sMask.charAt(i-1) == "9") { // apenas números...
                return ((nTecla > 47) && (nTecla < 58)); }
          else { // qualquer caracter...
                return true;
          }
        }
        else {
          return true;
        }
  }