function do_search() {
    $("#search-form").submit();
}

$(document).ready(
	function() {
		$("#submit-img").click( do_search );
		$("#search-form :input").bind(
			"keypress",
			function (event) {
				var keyCode = event.keyCode ? event.keyCode : event.which ? event.which : event.charCode;
				if (keyCode == 13) {
					do_search();
				}
			}
		);
	}
);