[support] l() function and javascript function

how can i insert javascript functions in diferent events on my link created with l() function??? i have this l($picture, "blog/$row->uid", array('title' => t('View user profile.')) this create a html code like this <a href="?q=blog/1" title="View user profile."><img src="http://URL_DOMAIN/files/avatar_selection/batman_1.jpg" alt="username's profile" title="username's profile" /></a> and i need add some events... <a href="?q=blog/1" title="View user profile." onclick="get_show('+SOME_VAR+')" onmouseout="usercardget_hide()" > <img src="http://URL_DOMAIN/files/avatar_selection/batman_1.jpg" alt="username's profile" title="username's profile" /></a> how can do this??? thks in advanced