function validate_communication(form)
{
  if(form.massive_meter.value==0)
  {
    if(!validate_ip(form.host.value))
      return false;
    if(!validate_number('Puerto TCP', form.port.value))
      return false;
    if(!validate_number('Direcci\u00f3n SMC X-Bus', form.address.value))
      return false;
  }
  return true;
}


function validate_parametrization(form)
{
  var caption="Tolerancia de demanda activa m\u00e1xima";
  if(!validate_number(caption, form.max_active_demand_tolerance.value))
    return false;

  var caption="Tolerancia de demanda reactiva m\u00e1xima";
  if(!validate_number(caption, form.max_reactive_demand_tolerance.value))
    return false;

  var caption="Tolerancia de consumo de energ\u00eda";
  if(!validate_number(caption, form.consumption_tolerance.value))
    return false;

  var caption="Tensi\u00f3n";
  if(!validate_number(caption, form.primary_voltage.value) || !validate_number(caption, form.nominal_voltage.value))
    return false;

  var caption="Corriente";
  if(!validate_number(caption, form.primary_current.value) || !validate_number(caption, form.nominal_current.value))
    return false;

  var caption="Potencia";
  if(!validate_decimal(caption, form.power_limit_a.value) || !validate_decimal(caption, form.power_limit_b.value))
    return false;

  var caption="Tolerancia de tensi\u00f3n";
  if(!validate_number(caption, form.voltage_tolerance.value))
    return false;

  var caption="Tolerancia de corriente";
  if(!validate_number(caption, form.current_tolerance.value))
    return false;

  var caption="M\u00ednimo factor de potencia";
  if(!validate_decimal(caption, form.min_power_factor.value))
    return false;

  var caption="Notificaci\u00f3n de potencia";
  if(!validate_decimal(caption, form.power_limit_notification.value))
    return false;

  return true;
}


function validate_meter(form)
{
  target=document.getElementById("editmeter_serialnumber_textbox");
  if(target.disabled==false)
    if(!validate_string("Nº de serie", form.serial_number.value))
      return false;

  target1=document.getElementById("editmeter_meterid_textbox");
  if(target1.disabled==false)
    if(!validate_string("Medidor", form.meter_id.value))
      return false;

  target2=document.getElementById("editmeter_serviceid_textbox");
  if(target2.disabled==false)
    if(!validate_string("Suministro", form.service_id.value))
      return false;

  if(!validate_string("Cabecera", form.header_id.value))
    return false;

  if(!validate_string("Designación", form.location.value))
    return false;

  if(!validate_coordinate("Latitud", form.latitude.value))
    return false;

  if(!validate_coordinate("Longitud", form.longitude.value))
    return false;

  return true;
}

function validate_concentrator(form)
{
  target=document.getElementById("editmeter_serialnumber_textbox");
  if(target.disabled==false)
    if(!validate_string("Nº de serie", form.serial_number.value))
      return false;

  if(!validate_string("Designación", form.location.value))
    return false;

  if(!validate_coordinate("Latitud", form.latitude.value))
    return false;

  if(!validate_coordinate("Longitud", form.longitude.value))
    return false;

  return true;
}

function validate_config(form)
{
  var en=form.nominal_freq;
  var em=form.max_rtc_drift;

  if(!validate_number("Frecuencia", en.value))
    return false;
  if(!validate_number("Desajuste", em.value))
    return false;

  var n=parseInt(en.value);
  var m=parseInt(em.value);

  if(n<1||n>255||!n)
  {
    alert('Frecuencia incorrecta');
    en.focus();
    return false;
  }
  else
  {
    en.value=n;
    if(m<1||m>255||!m)
    {
      alert('Desajuste incorrecto');
      em.focus();
      return false;
    }
    else
    {
      em.value=m;
    }
  }
  return true;
}


function validate_user(form, validate_pass, validate_empty_pass)
{
  if(!validate_string("Nombre", form.name.value))
    return false;

  if(!validate_string("Apellido", form.lastname.value))
    return false;

  if(!validate_empty("Usuario", form.username.value))
    return false;

  if(validate_empty_pass)
  {
    if(!validate_empty("Contraseña", form.password.value))
      return false;
  }

  if(form.email.value!='')
    if(!validate_email(form.email.value))
      return false;

  if(form.phone.value!='')
    if(!validate_phone("Tel\u00e9fono",form.phone.value))
      return false;

  if(form.mobile_phone.value!='')
    if(!validate_mobile_phone("Tel\u00e9fono m\u00f3vil",form.mobile_phone.value))
      return false;

  if(!validate_string("Usuario", form.username.value))
    return false;

  if(validate_pass)
  {
    if(!validate_password(form.password.value, form.password2.value))
      return false;
  }

  return true;
}


function validate_role(form)
{
  if(!validate_empty("Rol", form.rol_name.value))
    return false;

  return true;
}


function validate_company(form)
{
  if(!validate_empty("Nombre", form.name.value))
    return false;

  if(!validate_string("Nombre", form.name.value))
    return false;

  if(form.email.value!='')
    if(!validate_email(form.email.value))
      return false;

  if(!validate_string("Tel\u00e9fono de contacto", form.phone.value))
    return false;

  if(!validate_string("Contacto", form.contact.value))
    return false;

  if(form.password.value!='' || form.password2.value!='')
    if(!validate_password(form.password.value, form.password2.value))
      return false;

  return true;
}


function validate_password(pass1, pass2)
{
  if(pass1!=pass2)
  {
    alert("Las contraseñas no coinciden");
    return false;
  }
  return true;
}


function validate_new_billing(form)
{
  if(!validate_string("Descripci\u00f3n", form.description.value))
    return false;

  return true;
}


function validate_new_fiscalization(form)
{
  return true;
}


function validate_tariff(form)
{
  if(!validate_empty("Descripción", form.description.value))
    return false;

  return true;
}


function validate_edit_tariff(form)
{
  if(!validate_empty("Nombre", form.description.value))
    return false;

  return true;
}


function validate_holiday(form)
{
  if(!validate_empty("Descripción", form.description.value))
    return false;

  return true;
}


function validate_edit_holiday(form)
{
  if(!validate_empty("Descripción", form.description.value))
    return false;

  if(!validate_date("", form.holiday_date_year.value, form.holiday_date_month.value, form.holiday_date_day.value))
    return false;

  return true;
}


function validate_edit_band(form)
{
  if(!validate_empty("Nombre", form.description.value))
    return false;

  var selects=form.getElementsByTagName('select');
  var days=form.getElementsByClassName('dayband');
  if(selects.length>=2)
  {
    for(i=0;i<selects.length;i+=2)
    {
      if(parseInt(selects[i].value)>=parseInt(selects[i+1].value))
      {
        alert("Inicio debe ser menor a fin");
        return false;
      }
    }

    for(i=0;i<days.length;i+=8)
    {
      for(j=0;j<=7;j++)
      {
        if(days[i+j].checked==true)
          break;
        if(j==7)
        {
          alert("No pueden existir segmentos horarios sin días marcados");
          return false;
        }
      }
    }

    if(!form.energy_band.checked && !form.demand_band.checked)
    {
      alert("Debe elegir al menos una de las opciones Energía / Demanda");
      return false;
    }
  }
  else
  {
    alert("La banda debe tener al menos un segmento horario");
    return false;
  }

  return true;
}


function validate_mappings(form)
{
  if(!validate_empty("Descripción", form.description.value))
    return false;

  return true;
}


function validate_edit_mapping_band(form)
{
  if(!validate_empty("Nombre", form.description.value))
    return false;

  var bands=form.getElementsByClassName('band');

  for(i=0;i<bands.length;i+=4)
  {
    for(j=0;j<=3;j++)
    {
      if(bands[i+j].checked==true)
        break;
      if(j==3)
      {
        alert("Cada banda debe tener asignada al menos un registro del medidor");
        return false;
      }
    }
  }

  return true;
}


function validate_alarm_recognize(form)
{
  if(form.comment.value=="")
  {
    alert("Debe ingresar un comentario para poder reconcer la alarma");
    return false;
  }
  return true;
}


function validate_ip(ip)
{
  partes=ip.split('.');
  if(partes.length==4)
  {
    for(i=0;i<4;i++)
    {
      num=partes[i];
      if(num>255||num<0||num.length==0||isNaN(num))
      {
        alert('Direcci\u00f3n ip no v\u00e1lida');
        return false;
      }
    }
  }
  return true;
}


function validate_empty(caption, expression)
{
  if(!isNotEmpty(expression))
  {
    alert("El campo \""+caption+"\" no puede quedar en blanco");
    return false;
  }
  return true;
}


function validate_number(caption, expression)
{
  if(!isNumeric(expression))
  {
    alert("El campo \""+caption+"\" solo permite n\u00fameros enteros positivos");
    return false;
  }
  return true;
}


function validate_decimal(caption, expression)
{
  if(!isDecimal(expression))
  {
    alert("El campo \""+caption+"\" solo permite n\u00fameros decimales positivos");
    return false;
  }
  return true;
}


function validate_string(caption, expression)
{
  if(isAlphaNumeric(expression))
  {
    alert("El campo \""+caption+"\" solo permite letras, n\u00fameros, espacios, puntos, guiones y guines bajos");
    return false;
  }
  return true;
}


function validate_date(caption, year, month, day)
{
  if(!isValidDate(year, month, day))
  {
    if(caption=="")
      alert("La fecha es inválida");
    else
      alert("La fecha \""+caption+"\" es inválida");
    return false;
  }
  return true;
}


function validate_email(expression)
{
  if(expression!='')
  {
    if(isEmail(expression))
    {
      alert("La direcci\u00f3n de e-mail no es v\u00e1lida");
      return false;
    }
  }
  return true;
}


function validate_mobile_phone(caption, expression)
{
  if(expression!='')
  {
    if(isMobilePhone(expression))
    {
      alert("El campo \""+caption+"\" solo permite n\u00fameros y el signo +");
      return false;
    }
  }
  return true;
}



function validate_phone(caption, expression)
{
  if(expression!='')
  {
    if(isPhone(expression))
    {
      alert("El campo \""+caption+"\" solo permite n\u00fameros, espacios y los signo + y -");
      return false;
    }
  }
  return true;
}


function validate_coordinate(caption, value)
{
  if(value!='')
  {
    if(!(value>-180 && value<180))
    {
      alert("El campo \""+caption+"\" solo permite n\u00fameros entre -90 y 90");
      return false;
    }
  }
  return true;
}


function isPhone(expression)
{
  return (String(expression).search(/[^0-9+\- ]/) != -1);
}


function isMobilePhone(expression)
{
  return (String(expression).search(/[^0-9+]/) != -1);
}


function isEmail(expression)
{
  return !(String(expression).search(/(^[0-9a-zA-Z]+(?:[._][0-9a-zA-Z]+)*)@([0-9a-zA-Z]+(?:[._-][0-9a-zA-Z]+)*\.[0-9a-zA-Z]{2,3})$/) != -1);
}


function isNumeric(expression)
{
  return (String(expression).search(/^\d+$/) != -1);
}


function isDecimal(expression)
{
  var ret=false;
  ret=(String(expression).search(/^\d+(\.\d+)?$/) != -1);
  ret|=(String(expression).search(/^\d+(\,\d+)?$/) != -1);

  return ret;
}


function isAlphaNumeric(expression)
{
  return (String(expression).search(/[^A-Za-z0-9+._\-\s/\/áéíóúÁÉÍÓÚñÑ\"\\]/) != -1);
}


function isNotEmpty(expression)
{
  if(expression=='')
    return false;
  return true
}


function isValidDate(year, month, day)
{
  var monthLength=new Array(31,28,31,30,31,30,31,31,30,31,30,31);
  if(!day||!month||!year)
    return false;

  if(year/4==parseInt(year/4))
    monthLength[1]=29;

  if(month<1||month>12)
    return false;

  if(day>monthLength[month-1])
    return false;

  return true;
}


function number_format(number, decimals, dec_point, thousands_sep)
{
  var n = number, prec = decimals;

  var toFixedFix = function (n,prec) {
    var k = Math.pow(10,prec);
    return (Math.round(n*k)/k).toString();
  };

  n = !isFinite(+n) ? 0 : +n;
  prec = !isFinite(+prec) ? 0 : Math.abs(prec);
  var sep = (typeof thousands_sep === 'undefined') ? ',' : thousands_sep;
  var dec = (typeof dec_point === 'undefined') ? '.' : dec_point;

  var s = (prec > 0) ? toFixedFix(n, prec) : toFixedFix(Math.round(n), prec); //fix for IE parseFloat(0.55).toFixed(0) = 0;

  var abs = toFixedFix(Math.abs(n), prec);
  var _, i;

  if (abs >= 1000) {
    _ = abs.split(/\D/);
    i = _[0].length % 3 || 3;
    _[0] = s.slice(0,i + (n < 0)) + _[0].slice(i).replace(/(\d{3})/g, sep+'$1');
    s = _.join(dec);
  } else {
    s = s.replace('.', dec);
  }

  var decPos = s.indexOf(dec);
  if (prec >= 1 && decPos !== -1 && (s.length-decPos-1) < prec) {
    s += new Array(prec-(s.length-decPos-1)).join(0)+'0';
  }
  else if (prec >= 1 && decPos === -1) {
    s += dec+new Array(prec).join(0)+'0';
  }
  return s;
}