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

function SetForm(formName)
{
	form = formName;
}

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

function check_input_max_size(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.length > 0){
	    if (trim(field_value).length != field_size) {
	      error_message = error_message + "* " + message + "\n";
	      error = true;
	    }
    }
  }
}

function check_input_min_size(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 (trim(field_value).length < field_size) {
      error_message = error_message + "* " + message + "\n";
      error = true;
    }
  }
}

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

    if (field_value.length == 0) {
      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];
    if (radio != null && radio[0] == null && radio.checked == true) {
    	isChecked = true;
    }
    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_radioButtons(field_name_1,  field_name_2, message)
{
	  var isChecked = false;

	  isChecked = check_radio_selection(field_name_1);
	  isChecked = (isChecked == false) ? check_radio_selection(field_name_2) : isChecked;
	  if (isChecked == false)
	  {
		  error_message = error_message + "* " + message + "\n";
		  error = true;
	  }
}

function check_radio_selection(field_name) {
	  if (form.elements[field_name] && (form.elements[field_name].type != "hidden")) {
	    var radio = form.elements[field_name];
	    if (radio != null && radio[0] == null && radio.checked == true) {
	    	return true;
	    }
	    for (var i=0; i<radio.length; i++) { 
	      if (radio[i].checked == true) {
	       return true;
	      }
	    }
	  }
	  return false;
}

function check_checkbox(field_name, message) {
	  if (form.elements[field_name] && (form.elements[field_name].type != "hidden")) {
	    var checkbox = form.elements[field_name];
	    if (!checkbox.checked) {
	      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.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.length < field_size) {
      error_message = error_message + "* " + message_1 + "\n";
      error = true;
    } else if (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 trim(str) 
{
  str = this != window? this : str;
  return str.replace(/^\s+/g, '').replace(/\s+$/g, '');
}