hide empty div for ie7
<p>IE7 shows my empty divs, so 
I want to create a function that hides the div if it doesn’t have a ul element in it.
I have several divs to which this selector applies:  <code>'div.Home_filter_par div[class*="cq-colctrl-lt"] div.filters ul'</code>
I need to check every div separately. So this won’t work:</p>

<pre><code>function update () {
     if (('div.Home_filter_par div[class*="cq-colctrl-lt"] div.filters ul') == 0) {
         $('div.Home_filter_par div[class*="cq-colctrl-lt"] div.filters li').closest('div.parsys_column').hide();
     }
}
</code></pre>

<p>I also tried this way, but this hides even the divs that contain both empty div.filters and div.filters with ul elements in them</p>

<pre><code>$('div.Home_filter_par div[class*="cq-colctrl-lt"] 
div.filters:empty').closest('div.parsys_column').hide();
</code></pre>
