jQuery(function($) {
	$('form.give .custom-amount').hide();
	$('form.give [name=pre-designated-amount]').bind('click change', function() {
		if ($(this).val() == 'other') {
			$(this).closest('form.give').find('.custom-amount').show().focus();
		} else {
			$(this).closest('form.give').find('.custom-amount').hide();
		}
	});
	$('form.give').submit(function() {
		if($('form.give [name=pre-designated-amount]:checked').val() == 'other') {
			var amount = $(this).find('.custom-amount')
			if (/^\d+$/.test(amount.val())) {
				return true;
			} else {
				amount.addClass("error");
				alert("Please enter a valid dollar amount.");
				return false;
			}
		}
	});
});