jQuery-UI's autocomplete not display well, z-index issue

I'm currently implementing jQuery UI's autocomplete in my clients webshop. The problem is: the element the autocomplete resides in, has a higher z-index then the z-index of the autocomplete. I tried setting the autocomplete z-index manually, but I've got the feeling that jQuery UI is overwriting this.

In fact my question is a duplicate of autocomplete suggestion list wrong z-index, how can i change?, but since there was no answer I thought about giving it another try.

Any help is welcome!

Martijn

Use z-index and !important

.ui-autocomplete { position: absolute; cursor: default;z-index:30 !important;}  

While searching I found this topic (http://forum.jquery.com/topic/alternating-style-on-autocomplete). Apparently the only way to change the style of the autocomplete box is by doing it through javascript:

    open: function(){
        $(this).autocomplete('widget').css('z-index', 100);
        return false;
    },

Change the z-index of the parent Div, the autocomplete menu will have the div's z-index+1

In the CSS of jQuery UI:

.ui-front { z-index: 9999; }

Try this, you can manipulate the z-index on runtime or initializing

$('#autocomplete').autocomplete({
    open: function(){
        setTimeout(function () {
            $('.ui-autocomplete').css('z-index', 99999999999999);
        }, 0);
    }
});