/**
 * Função que valida o CPF
 *
 * @return boolean
 *
 */
function checaCPF(CPF){

	if (CPF.charAt(3) == '.') {
		CPF = CPF.substr(0,3) + CPF.substr(4);
	}

	if (CPF.charAt(6) == '.') {
		CPF = CPF.substr(0,6) + CPF.substr(7);
	}

	if (CPF.charAt(9) == '-') {
		CPF = CPF.substr(0,9) + CPF.substr(10);
	}

	if (CPF.length != 11 || CPF == "00000000000" || CPF == "11111111111" ||
	CPF == "22222222222" || CPF == "33333333333" || CPF == "44444444444" ||
	CPF == "55555555555" || CPF == "66666666666" || CPF == "77777777777" ||
	CPF == "88888888888" || CPF == "99999999999")
		return false;

	soma = 0;
	for (i=0; i < 9; i ++)
		soma += parseInt(CPF.charAt(i)) * (10 - i);
	resto = 11 - (soma % 11);
	if (resto == 10 || resto == 11)
		resto = 0;
	if (resto != parseInt(CPF.charAt(9)))
		return false;
	soma = 0;
	for (i = 0; i < 10; i ++)
		soma += parseInt(CPF.charAt(i)) * (11 - i);
	resto = 11 - (soma % 11);
	if (resto == 10 || resto == 11)
		resto = 0;
	if (resto != parseInt(CPF.charAt(10)))
		return false;

	return true;

}

/**
 * Função que valida o CNPJ
 *
 * @return boolean
 *
 */
function checaCNPJ(cnpj){
	
	vr = cnpj;
	vr = vr.replace( "/", "" );
	vr = vr.replace( "/", "" );
	vr = vr.replace( ",", "" );
	vr = vr.replace( ".", "" );
	vr = vr.replace( ".", "" );
	vr = vr.replace( ".", "" );
	vr = vr.replace( ".", "" );
	vr = vr.replace( "-", "" );
	vr = vr.replace( "-", "" );
	vr = vr.replace( "-", "" );
	vr = vr.replace( "-", "" );
	vr = vr.replace( "-", "" );
	cnpj = vr;
	
    var numeros, digitos, soma, i, resultado, pos, tamanho, digitos_iguais;
      digitos_iguais = 1;
      if (cnpj.length < 14 && cnpj.length < 15)
            return false;
      for (i = 0; i < cnpj.length - 1; i++)
            if (cnpj.charAt(i) != cnpj.charAt(i + 1))
                  {
                  digitos_iguais = 0;
                  break;
                  }
      if (!digitos_iguais)
            {
            tamanho = cnpj.length - 2
            numeros = cnpj.substring(0,tamanho);
            digitos = cnpj.substring(tamanho);
            soma = 0;
            pos = tamanho - 7;
            for (i = tamanho; i >= 1; i--)
                  {
                  soma += numeros.charAt(tamanho - i) * pos--;
                  if (pos < 2)
                        pos = 9;
                  }
            resultado = soma % 11 < 2 ? 0 : 11 - soma % 11;
            if (resultado != digitos.charAt(0))
                  return false;
            tamanho = tamanho + 1;
            numeros = cnpj.substring(0,tamanho);
            soma = 0;
            pos = tamanho - 7;
            for (i = tamanho; i >= 1; i--)
                  {
                  soma += numeros.charAt(tamanho - i) * pos--;
                  if (pos < 2)
                        pos = 9;
                  }
            resultado = soma % 11 < 2 ? 0 : 11 - soma % 11;
            if (resultado != digitos.charAt(1))
                  return false;
            return true;
            }
      else
            return false;
      

}

function isValidDate(dateStr, format) {
   if (format == null) { format = "MDY"; }
   format = format.toUpperCase();
   if (format.length != 3) { format = "MDY"; }
   if ( (format.indexOf("M") == -1) || (format.indexOf("D") == -1) || 
      (format.indexOf("Y") == -1) ) { format = "MDY"; }
   if (format.substring(0, 1) == "Y") { // If the year is first
      var reg1 = /^\d{2}(\-|\/|\.)\d{1,2}\1\d{1,2}$/
      var reg2 = /^\d{4}(\-|\/|\.)\d{1,2}\1\d{1,2}$/
   } else if (format.substring(1, 2) == "Y") { // If the year is second
      var reg1 = /^\d{1,2}(\-|\/|\.)\d{2}\1\d{1,2}$/
      var reg2 = /^\d{1,2}(\-|\/|\.)\d{4}\1\d{1,2}$/
   } else { // The year must be third
      var reg1 = /^\d{1,2}(\-|\/|\.)\d{1,2}\1\d{2}$/
      var reg2 = /^\d{1,2}(\-|\/|\.)\d{1,2}\1\d{4}$/
   }
   // If it doesn't conform to the right format (with either a 2 digit year or 4 digit year), fail
   if ( (reg1.test(dateStr) == false) && (reg2.test(dateStr) == false) ) { return false; }
   var parts = dateStr.split(RegExp.$1); // Split into 3 parts based on what the divider was
   // Check to see if the 3 parts end up making a valid date
   if (format.substring(0, 1) == "M") { var mm = parts[0]; } else 
      if (format.substring(1, 2) == "M") { var mm = parts[1]; } else { var mm = parts[2]; }
   if (format.substring(0, 1) == "D") { var dd = parts[0]; } else 
      if (format.substring(1, 2) == "D") { var dd = parts[1]; } else { var dd = parts[2]; }
   if (format.substring(0, 1) == "Y") { var yy = parts[0]; } else 
      if (format.substring(1, 2) == "Y") { var yy = parts[1]; } else { var yy = parts[2]; }
   if (parseFloat(yy) <= 50) { yy = (parseFloat(yy) + 2000).toString(); }
   if (parseFloat(yy) <= 99) { yy = (parseFloat(yy) + 1900).toString(); }
   var dt = new Date(parseFloat(yy), parseFloat(mm)-1, parseFloat(dd), 0, 0, 0, 0);
   if (parseFloat(dd) != dt.getDate()) { return false; }
   if (parseFloat(mm)-1 != dt.getMonth()) { return false; }
   return true;
}