$(document).ready(function(){
	if ($("#book_roomtype")) {
		if ($("#book_roomtype").val() == 1) {
			$("#book_bedtype").attr("disabled", "disabled");
		} else {
			$("#book_bedtype").removeAttr("disabled");
		}

		$("#book_roomtype").change(function() {
			if ($("#book_roomtype").val() == 1) {
				$("#book_bedtype").attr("disabled", "disabled");
			} else {
				$("#book_bedtype").removeAttr("disabled");
		}
		});
	}
});