Calling an action on mouse over of the link_to in rails

Rails
1

Hi ,

i am very new to rails.
I am having a link like

<%= hcard_link_to_user h(@blog.user.fullname), @blog.user, :class =>
“underline” %>

I am trying to call an action on mouse over of this link how to do that
…

Please give suggestions.

Aruna.