Error in if else if and if - JavaScript & jQuery

I'm trying to hide a dropdown div above a header when the no button is clicked and I'm not sure where the problem lies because I'm still learning JQuery.

Not sure what $.cookie("cookies_ok", 1,... does, the rest of the line uses Shopify's language to check the expiration date.

I'm not sure where the problem lies within the code.

---

(function($) {
$(document).ready(function(){
    if ($.cookie("cookies_ok") != 1) {
        $(".cookies_container").show();

        if ($(".cookie_ok").click(function () ){
            $.cookie("cookies_ok", 1, { expires :  });
            $(this).parent().parent().slideUp("slow");
            return false;
        });
        else if($(".cookie_no").click(function () ){
            $(this).parent().parent().slideUp("slow");
            return false;
            });
        else{
            $(".cookies_container").hide();
            return false;
            };

        };
    };
);
})(jQuery);

<div class="cookies_container">
<div class="container">
<p><b> </b></p>
<a href="" class="cookie_btn cookie_ok">OK, I don't mind using cookies</a>
<a href="" class="cookie_btn cookie_no">No thanks</a>