How to add class to list depends on text?

In some page, my side menu is created dynamically like this.

<div id="tree" class="treeview">
<ul><li><a href="Salg.asp" title="" class="">Salg</a></li>
<li><a href="Retur.asp" title="" class="">Retur</a></li>
<li><a href="Support.asp" title="" class="active">Support</a> </li>
<li><a 开发者_StackOverflow中文版href="konomi.asp" title="" class="">Økonomi</a></li>
</ul>
</div><!-- end of tree treeview -->

In other page all the list have different text such as product categories etc.

Now I need to add padding to li in the menu where list texts are Salg, Retur, Support, and Økonomi.

This means I need to add a class "listpad" to li where the texts are Salg, Retur, Support, and Økonomi.

Could anyone tell me how to do this please?

Thanks in advance.

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You can use the :contains filter selector for that like this:

$('ul#tree li:contains("Salg")').addClass('listpad');
$('ul#tree li:contains("Retur")').addClass('listpad');
$('ul#tree li:contains("Support")').addClass('listpad');
$('ul#tree li:contains("Økonomi")').addClass('listpad');