Alternative to using title

Alternative to using title

I know I can use the following
<div title="xxxxx">yyyyy</div>
Hovering over yyyy displays xxxxx for a few seconds.

I would like a jQuery method that would allow multiply lines and retention of the box until there is no longer a hover. Ideally it would be as simple as
<div class="myhover" mytitle="xxxxx<br>xxxxx">yyyyy</div>