How to add an attribute like mouseover="hm(this,'la1',5)" to an element using .live()?

How to add an attribute like mouseover="hm(this,'la1',5)" to an element using .live()?

Hi,
I quite like the fact that you may add through JQuery an attribute like alt or title to an element. And I can see that you may also add mouseover using $('#aa').mouseover(function(){//does something in here});
HOWEVER, I want to be able to pass some very specific values too and that's where I'm stuck for an answer.

Suppose I want to attach the following mouseover="hm(this,'la1',5)" attribute to an <a> tag.
How do I do this by using exactly those values inside the "hm(this,'la1',5)" ?

Thanks for any help.

Regards
Tony