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


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

    sValue = objeto.value;


    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) { 
      if (sMask.charAt(i-1) == "9") { 
        return ((nTecla > 47) && (nTecla < 58)); } 
      else { 
        return true;
      } 
    }
    else {
      return true;
    }
  }
  
  
  
function ValidaSemPreenchimento(form){
for (i=0;i<form.length;i++){
var obg = form[i].obrigatorio;
if (obg==1){
if (form[i].value == ""){
var nome = form[i].descricao
alert("O campo " + nome + " é obrigatório.")
form[i].focus();
return false
}
}
}
return true
}



function checkEmail (strng) {
	var flagError = false;
	var error="";
	
	if (strng == "") {
		error = "O e-mail deve ser preenchido.";
		flagError = true;
	}
	
	if (!flagError) {
		var illegalChars = /(@.*@)|(@\.)|(@\-)|(@_)(\.@)|(\-@)|(\.\.)|(^\.)|(\.$)|(\.\-)|(\._)|(\-\.)|(_\.)|(^_)|(_$)|(_\-)|(\-\-)|(^\-)|(\-$)|(\-_)/;
		if (strng.match(illegalChars)) {
			error = "O e-mail contém caracteres inválidos.";
			flagError = true;
		}
	}

	if (!flagError) {
		var emailFilter = /^\S+\@(\[?)[a-zA-Z0-9_\-\.]+\.([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/;
		if (!(emailFilter.test(strng))) { 
			error = "O e-mail não está em um formato válido.";
			flagError = true;
		}
	}

	if (!flagError) {
		var emailFilter = /^([a-zA-Z0-9\@_\-\.\+]+)$/;
		if (!(emailFilter.test(strng))) { 
			error = "O e-mail não está em um formato válido.";
			flagError = true;
		}
	}

	if (flagError) {
		window.alert(error);
	}

	return !flagError;
}