<!--
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.length < field_size) {
      error_message = error_message + "* " + message + "\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 flag = (field_value.indexOf(".") > 2) && (field_value.indexOf("@") > 0);
		if (!flag)
		{
			error_message = error_message + "* " + message + "\n";
			error = true;
		}
	}  
}

function check_form(form_name) {
  if (submitted == true) {
    alert("Form Already Submitted.");
    return false;
  }

  error = false;
  form = form_name;
  error_message = "Errors have occured during the process of your form.\n\nPlease make the following corrections:\n\n";

  check_input("realname", 1, "Please input your name.");
	check_email("email", "Email is empty or not valid.");
	check_input("Address", 1, "Please input your address.");
	check_input("Subject", 1, "Please input your subject.");
	check_input("Message", 1, "Please input your message.");
	check_input("vercode", 1, "Please input the verification code.");
	
  if (error == true) {
    alert(error_message);
    return false;
  } else {
    submitted = true;
    return true;
  }
}
//-->