$().ready(function() {

    $("#txtkeyword").keydown(function(event) {

        if (event.keyCode == 13 && $("#txtkeyword").val() != "") {
            var links = "ara.aspx";
            links += "?k=" + $("#txtkeyword").val();
            location.href = links;
            return false;
        }


    });

    $("#sadeara").click(function() {
        var links = "ara.aspx";
        links += "?k=" + $("#txtkeyword").val();
        location.href = links;
        return false;
    });

});