function validateContactus() {
	
	if ($.trim($('#first_name').attr('value')) == '') {
		alert('Please type your first name.');
		$('#first_name').focus();
		return false;
	}
	
	if ($.trim($('#last_name').attr('value')) == '') {
		alert('Please type your last name.');
		$('#last_name').focus();
		return false;
	}
	
	if ($.trim($('#URL').attr('value')) == '') {
		alert('Please type "Company / Website" field.');
		$('#URL').focus();
		return false;
	}

	if ($.trim($('#email').attr('value')).length < 7 || $.trim($('#email').attr('value')).indexOf('@') == -1) {
		alert('Please type "Email" field correctly.');
		$('#email').focus();
		return false;
	}
	
	return true;
}