First, my url looks like this : http://site.com/#a1111

I would like, depending on the value of the anchor called, to add a class to the box related.

Actually, i have :

1. <div id="a1111">text</div>
2. <div id="a2222">text</div>
3. <div id="a3333">text</div>

And i would like that when the page is called like in the previous example, the "highlight" class is added to the box with the id "a1111":

1. <div id="a1111" class="highlight">text</div>
2. <div id="a2222">text</div>
3. <div id="a3333">text</div>

Would you have any idea on how to do so ?

(the link is external to the page)

Thanks