function checkForm()
{
	if (document.postForm.forename.value == '')
	{
		alert('Please enter your forename');
		document.postForm.forename.focus();
		return;
	}

	if (document.postForm.surname.value == '')
	{
		alert('Please enter your surname');
		document.postForm.surname.focus();
		return;
	}

	if (document.postForm.tel.value == '' && document.postForm.mobile.value == '')
	{
		alert('Please enter at least one telephone number');
		document.postForm.tel.focus();
		return;
	}

	if (document.postForm.postcode.value == '')
	{
		alert('Please enter your postcode');
		document.postForm.postcode.focus();
		return;
	}

	document.postForm.action = 'http://www.1stcapital.co.uk/sys/post.php';
	document.postForm.submit();
}