function textCounter(form, field, countfield)
{
    f = form;

    var maxlimit = '400';
    var uinput=0;

    if (maxlimit == 0)
        maxlimit = 400;

    if (field.value.length > 0)
        uinput = field.value.length + 4;

    // IE counts both CR and NL, so just count for NL.
    var IELength = 0;
    if (field.value.length > 0 && field.value.match('\r'))
    {
        splitL = field.value.split('\n').length;
        uinputL   = field.value.length;

        if (splitL >= 3)
           IELength = splitL - 1; // splitL >= 3
        else
           IELength = 1;

        uinput = uinput - IELength;
    }

    var totaluinput = uinput;

    if (totaluinput > maxlimit)
    {
       var overflow = totaluinput - maxlimit;
       var backspace = field.value.length - overflow;
       if (field.value.length > 0 && backspace < 0)
       {
          backspace = backspace * -1;
          if (field.value.length < backspace)
             overflow = field.value.length;
          else
             overflow = backspace;
       }
       else if (field.value.length == 0 && backspace < 0)
          overflow = 0;

       field.value = field.value.substring(0, field.value.length-overflow);
    }
    else
       countfield.value = maxlimit - totaluinput;
} // textCounter()

var form = "";
var submitted = false;
var error = false;
var error_message = "";

function check_input(field_name, field_size, message) {
  if (form.elements[field_name] && (form.elements[field_name].type != "hidden")) {
    var field_value = form.elements[field_name].value;

    if (field_value == '' || field_value.length < field_size) {
      error_message = error_message + "* " + message + "\n";
      error = true;
    }
  }
}

function check_radio(field_name, message) {
  var isChecked = false;

  if (form.elements[field_name] && (form.elements[field_name].type != "hidden")) {
    var radio = form.elements[field_name];

    for (var i=0; i<radio.length; i++) {
      if (radio[i].checked == true) {
        isChecked = true;
        break;
      }
    }

    if (isChecked == false) {
      error_message = error_message + "* " + message + "\n";
      error = true;
    }
  }
}

function check_select(field_name, field_default, message) {
  if (form.elements[field_name] && (form.elements[field_name].type != "hidden")) {
    var field_value = form.elements[field_name].value;

    if (field_value == field_default) {
      error_message = error_message + "* " + message + "\n";
      error = true;
    }
  }
}

function check_password(field_name_1, field_name_2, field_size, message_1, message_2) {
  if (form.elements[field_name_1] && (form.elements[field_name_1].type != "hidden")) {
    var password = form.elements[field_name_1].value;
    var confirmation = form.elements[field_name_2].value;

    if (password == '' || password.length < field_size) {
      error_message = error_message + "* " + message_1 + "\n";
      error = true;
    } else if (password != confirmation) {
      error_message = error_message + "* " + message_2 + "\n";
      error = true;
    }
  }
}

function check_password_new(field_name_1, field_name_2, field_name_3, field_size, message_1, message_2, message_3) {
  if (form.elements[field_name_1] && (form.elements[field_name_1].type != "hidden")) {
    var password_current = form.elements[field_name_1].value;
    var password_new = form.elements[field_name_2].value;
    var password_confirmation = form.elements[field_name_3].value;

    if (password_current == '' || password_current.length < field_size) {
      error_message = error_message + "* " + message_1 + "\n";
      error = true;
    } else if (password_new == '' || password_new.length < field_size) {
      error_message = error_message + "* " + message_2 + "\n";
      error = true;
    } else if (password_new != password_confirmation) {
      error_message = error_message + "* " + message_3 + "\n";
      error = true;
    }
  }
}

function check_email(field_name, message)
{

  if (form.elements[field_name] && (form.elements[field_name].type != "hidden")) {
    var field_value = form.elements[field_name].value;
		var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9])+$/;
		if (filter.test(field_value)) {
		} else {
      error_message = error_message + "* " + message + "\n";
      error = true;		
		}
  }

}

function check_form(form_name) {
  if (submitted == true) {
    alert("There is an error in the form.");
    return false;
  }

  error = false;
  form = form_name;
  error_message = "There are errors in the form.\nPlease, correct the following:\n\n";

  check_input("Email", 3, "E-mail must have at least 3 letters.");
  check_email("Email", "Please enter a valid e-mail address.");

  if (error == true) {
    alert(error_message);
    return false;
  } else {
    submitted = true;
    return true;
  }
}