function submit_contact()
{
	error_message = '';
	
	if ($F('contact_message') == '') {
		$('contact_message').focus();
		error_message = 'Please enter message';
	}
	if ($F('contact_phone') == '') {
		$('contact_phone').focus();
		error_message = 'Please enter phone';
	}
	if (!isValidEmail($F('contact_email'))) {
		$('contact_email').focus();
		error_message = 'Please enter valid email';
	}
	if ($F('contact_name') == '') {
		$('contact_name').focus();
		error_message = 'Please enter name';
	}

	$('contact_error').update(error_message);	

	if (error_message == '') {
		
		pars = 'cmd=send';
		pars += '&name=' + $F('contact_name');
		pars += '&email=' + $F('contact_email');
		pars += '&phone=' + $F('contact_phone');
		pars += '&subject=' + $F('contact_subject');
		pars += '&message=' + $F('contact_message');
		
		var myAjax = new Ajax.Request(
				'control/contact.php',
				{
					method: 'get',
					parameters: pars,
					onComplete: showResponse
				}
			);
	}

	function showResponse(originalRequest)
	{
		buffer = 'Your message have been sent. Thank you for contacting us.';
		$('contact_block').update(buffer);	
	}

	return false;
}