function donate_validate () {
	var donation = document.getElementById('donation');
	
	if (donation.value == '') {
		alert('Please enter the amount of your donation to support our missionaries.');
		donation.focus();
		return false;
	}
	if (!isNumeric(donation.value)) {
		alert('Please enter a valid monetary value');
		donation.focus();
		return false;
	}
	if (parseFloat(donation.value) < 0) {
		alert('Please enter a positive monetary value');
		donation.focus();
		return false;
	}
	return true;
}