How To Get Mouse Over Event To Link Button From Client Side?

I want to show some link buttons on a panel in Mouse over event.These buttons visibility will change according to the Logged user type.Please suggest me the way to get this. I want

Solution 1:

void onMouseOver(object sender, MouseOverEventargs e) 
{
    LinkButton btn = sender as LinkButton;
    if(loggedinUser == Admin) btn.visibility = visible;        
    else btn.visibility == hidden;
}

Or if you want to change all buttons on panel mouse over get all the controls in the panel and do a foreachloop.. if(control is Linkbutton)..