<!--
function setup_validation()
	{
	var form = document.getElementById("input");
	form.onsubmit = validate_form;
	}

function validate_form()
	{
	if (!check_email())
		return false;

	if (is_blank(document.getElementById("question").value))
		{
		alert("Please enter a question");
		return false
		}

	return true;
	}

function check_email()
	{
	var email = document.getElementById("email").value;
	if (is_blank(email))
		{
		alert("Please enter an email address!");		
		return false;
		}
	if (!is_valid_email(email))
		{
		alert("Please enter a valid email address!");		
		return false;
		}

	return true;
	}

function is_blank(input)
	{
	for (var i=0; i<=input.length; i++)
		{
		if (input.charAt(i) != " " && input.charAt(i) != "")
			return false;
		}
	return true;
	}

function is_valid_email(input)
	{
	var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
	return reg.test(input);
	}

window.onload = setup_validation;
-->