function Validate(subjectId, textareaId, submitId, plzCompletePhrase, msgTooLongPhrase, allowedCharPhrase, currCharPhrase) {
	var maxchars = 65535;
	var subjectDom = GetElementById(subjectId);
	var textareaDom = GetElementById(textareaId);
	var submitDom = GetElementById(submitId);
	if (textareaDom.value == "" || subjectDom.value == "") {
		if (plzCompletePhrase == null) {
			plzCompletePhrase = "Please complete the subject and message fields.";
		}
		alert(plzCompletePhrase);
		return false;
	}
	if (maxchars != 0) {
		if (textareaDom.value.length > maxchars) {
			if (msgTooLongPhrase == null) {
				msgTooLongPhrase = "Your message is too long.";
			}
			if (allowedCharPhrase == null) {
				allowedCharPhrase = "Allowed max chars length: ";
			}
			if (currCharPhrase == null) {
				currCharPhrase = "Current chars length: ";
			}
			alert(msgTooLongPhrase + "\n\n" + allowedCharPhrase + maxchars + "\n" + currCharPhrase + textareaDom.value.length + "");
			textareaDom.focus();
			return false;
		} else {
			submitDom.disabled = true;
			return true;
		}
	} else {
		submitDom.disabled = true;
		return true;
	}
}

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 nuevoAjax() {
	var xmlhttp=false;
	try {
		xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
	}
	catch (e) {
		try {
			xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
		}
		catch (E) {
			xmlhttp = false;
		}
	}
	if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
		xmlhttp = new XMLHttpRequest();
	}
	return xmlhttp;
}

function check_server() {
 	var email = document.contactForm.email.value;
 	var content = document.getElementById('emailContainer');
 	content.innerHTML = "reviewing your address";
	ajax=nuevoAjax();
	ajax.open("GET", "kernel/validate.php?email=" + email, true);
	ajax.onreadystatechange=function() {
		if (ajax.readyState==4) {
			if(ajax.responseText=='invalid') {   
			 	content.innerHTML = "<b style='color: red;'>This is not a valid Email address</b>";
			 	document.contactForm.validemail.value++;
      		} else {
      		    content.style.visibility = 'hidden';
      		    document.contactForm.validemail.value--;
      		}
		}
    }
	ajax.send(null)
}

function check_form(form_name) {
  if (submitted == true) {
    alert("This form has already been submitted. Please press Ok and wait for this process to be completed.");
    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("fname", 2, "Enter your real First Name.");
  check_input("lname", 2, "Enter your real Last Name");
  check_input("location", 2, "Enter the location you life or work.");
  check_input("email", 9, "Enter your real email address.");
  check_input("message", 12, "Please be a little more explisit in your message.");

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