$(document).ready(function () {
    $("div.panel_button").click(function () {
        $("div#panel").animate({
            height: "160px"
        })
		.animate({
		    height: "149px"
		}, "fast");
        $("div.panel_button").toggle();

    });

    $("div#hide_button").click(function () {
        $("div#panel").animate({
            height: "0px"
        }, "fast");
    });
});