I have this string in variable name `data` which have html tags and all

```
<div class="cqr">
  <span class="ico-cqr2 icon-28 star1">quality</span>
  <span class="ico-cqr2 icon-28 star2">quality</span>
  <span class="ico-cqr2 icon-28 star3">quality</span>
  <span class="ico-cqr2 icon-28 star4">quality</span>
  <span class="ico-cqr2 icon-28 star5">quality</span>
</div>

```

I parse this string into html as

```
var tHTML = $.parseHTML(data, null, true);

```

now i need to manipulate the DOM like add/remove some class from span. how can I achieve that.