[jQuery] Adding class to a parent element- traversion help?

[jQuery] Adding class to a parent element- traversion help?


I've got the following as my jquery code:
<script type="text/javascript">
    $(document).ready(function() {
    $(".bc-wrapper:empty").(this).parent().addClass("none");
    });
</script>
And the html is:
<div class="bottom-content">
<div class="bc-wrapper">
</div>
</div>
The css is as follows:
.bottom-content {
    display: block;
    width: 215px;
    border: 1px solid #ccc;
    float: left;
    margin-right: 20px;
    }
.bc-wrapper {
    padding: 5px;
    }
.none {
    visibility: hidden;
    border: none;
    }
----------------------------------
Basically in this example, I'd like the bottom-content class to be
hidden if the bc-wrapper class has no content. Unfortunately, I
believe I've written my code wrong (in all the different variations
I've tried) for jQuery because nothing is happening. Even when I check
with Firebug, there's no class attached anywhere.
Any thoughts?