SO - 18524554

by Sebastian Kay

HTML

<input />
<ul class="AvailableGroupLab">
<li>wewe</li>
<li>54fads</li>
<li>asfdsfsd</li>
</ul>

CSS

li {
  display: none;
}

JavaScript

function filter(element) {
    var $trs = $('ul').hide();
    var regexp = new RegExp($(element).val(), 'i');

    var $valid = $trs.filter(function () {
        return regexp.test($(this).find('li').html())
    }).show();

    $trs.not($valid).hide()
}

$('input').on('keyup change', function () {
    filter(this);
})