// JavaScript Document
//MÁSCARA DE VALORES

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;
    }
  }
 String.PAD_LEFT  = 0;
String.PAD_RIGHT = 1;
String.PAD_BOTH  = 2;

String.prototype.pad = function(size, pad, side) {
  var str = this, append = "", size = (size - str.length);
  var pad = ((pad != null) ? pad : " ");
  if ((typeof size != "number") || ((typeof pad != "string") || (pad == ""))) {
    throw new Error("Wrong parameters for String.pad() method.");
  }
  if (side == String.PAD_BOTH) {
    str = str.pad((Math.floor(size / 2) + str.length), pad, String.PAD_LEFT);
    return str.pad((Math.ceil(size / 2) + str.length), pad, String.PAD_RIGHT);
  }
  while ((size -= pad.length) > 0) {
    append += pad;
  }
  append += pad.substr(0, (size + pad.length));
  return ((side == String.PAD_LEFT) ? append.concat(str) : str.concat(append));
}

Number.prototype.format = function(d_len, d_pt, t_pt) {
  var d_len = d_len || 0;
  var d_pt = d_pt || ".";
  var t_pt = t_pt || ",";
  if ((typeof d_len != "number")
    || (typeof d_pt != "string")
    || (typeof t_pt != "string")) {
    throw new Error("wrong parameters for method 'String.pad()'.");
  }
  var integer = "", decimal = "";
  var n = new String(this).split(/\./), i_len = n[0].length, i = 0;
  if (d_len > 0) {
    n[1] = (typeof n[1] != "undefined") ? n[1].substr(0, d_len) : "";
    decimal = d_pt.concat(n[1].pad(d_len, "0", String.PAD_RIGHT));
  }
  while (i_len > 0) {
    if ((++i % 3 == 1) && (i_len != n[0].length)) {
      integer = t_pt.concat(integer);
    }
    integer = n[0].substr(--i_len, 1).concat(integer);
  }
  return (integer + decimal);
}