function validEmail(email)
{
	return email.match(/[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?/i);
}

function isValid(required)
{
	error_elem = document.getElementById('div_error');
	error_elem.innerHTML = '';

	all_valid = true;
	for (var i in required) {
		valid = false;
		for (var j in required[i]) {
			elem = document.getElementById(required[i][j]);
			if (elem.value != "")
				valid = true;
		}

		if (!valid) {
			if (error_elem.innerHTML != '')
				error_elem.innerHTML += '; ';
			if (required[i].length > 1)
				error_elem.innerHTML += 'one of ';
		}

		for (var j in required[i]) {
			elem = document.getElementById(required[i][j]);
			if (valid) {
				elem.className = 't';
			} else {
				elem.className = 't_error';

				try
				{
					if (j > 0) {
						error_elem.innerHTML += ', ';
						if (j == required[i].length - 1)	{
							error_elem.innerHTML += 'or ';
						}
					}

					error_elem.innerHTML += document.getElementById(required[i][j] + '_error').innerHTML;
				}
				catch (error)
				{}
			}
		}

		if (!valid) {
			all_valid = false;
		}
	}

	return all_valid;
}

function validate()
{
	var required = [
		['g_first_name'], 
		['g_last_name'], 
		['g_street_address'], 
		['g_city'], 
		['g_province'], 
		['g_postal_code'],
		['g_day_phone', 'g_cell_phone', 'g_phone', 'g_email']
	];

	if (document.getElementById('t_residential').checked) {
		required.push(['r_location']);
		required.push(['r_house_size']);
		required.push(['r_bedrooms']);
		required.push(['r_bathrooms']);
	} else if (document.getElementById('t_condominium').checked) {
		required.push(['c_location']);
		required.push(['c_house_size']);
		required.push(['c_bedrooms']);
		required.push(['c_bathrooms']);
	} else if (document.getElementById('t_lot').checked) {
		required.push(['l_location']);
		required.push(['l_preferred_size']);
	}

	all_valid = isValid(required);

	elem = document.getElementById('div_error');
	if (!all_valid) {
		elem.innerHTML = 'Please enter ' + elem.innerHTML + '.';
	}
	
	email = document.getElementById('g_email').value
	if (email != '' && !validEmail(email)) {
		elem.innerHTML += '  Please enter a valid email address.';
		document.getElementById('g_email').className = 't_error';
		return false;
	}

	return all_valid;
}

function homeEvalValidate()
{
	var required = [
		['g_first_name'], 
		['g_last_name'], 
		['g_day_phone', 'g_cell_phone', 'g_phone', 'g_email'],
		['CaptchaStr'],
		['p_street_address'],
		['p_city'],
		['p_province'],
		['p_postal_code']
	];

	all_valid = isValid(required);

	elem = document.getElementById('div_error');
	if (!all_valid) {
		elem.innerHTML = 'Please enter ' + elem.innerHTML + '.';
	}
	
	email = document.getElementById('g_email').value
	if (email != '' && !validEmail(email)) {
		elem.innerHTML += '  Please enter a valid email address.';
		document.getElementById('g_email').className = 't_error';
		return false;
	}

	return all_valid;
}

function copyValue(to, from)
{
	document.getElementById(to).value = document.getElementById(from).value;
}

function addressMatches(copy)
{
	var fields = ['street_address', 'city', 'province', 'postal_code', 'unit'];

	var required = [
		['g_street_address'], 
		['g_city'], 
		['g_province'], 
		['g_postal_code']
	];

	for (var i in fields) {
		document.getElementById('p_' + fields[i]).disabled = copy;
		document.getElementById('p_' + fields[i]).className = 't';
	}

	if (!copy)
		return;

	for (var i in fields) {
		document.getElementById('p_' + fields[i]).className = "t";
		copyValue('p_' + fields[i], 'g_' + fields[i]);
	}

	if (!isValid(required)) {
		alert('Please enter address');
		document.getElementById('address_matches').checked = false;
		return;
	}
}