[jQuery] Join element sets?

[Dennis Madsen]

I have two element sets: $(".contentBox") and $(".referencesImage").
How can I join the elements in this sets? I would like to join the
sets, since I'm adding the exact same hover function on both element
sets.

        $(".contentBox").hover(function(event){
                ..do something
        },function(event){
                ..do something
        });

        $(".referencesImage").hover(function(event){
                ..do something
        },function(event){
                ..do something
        });