hover_replaceTitlesByTags('img,a,div,span', "'trail', true ");

/*
var hover = {
'span.hover1' : function(element) {
 element.onmouseover = function(event) {
  domTT_activate(this, event,   'content', 'Lorem ipsum dolor',   'trail', true   );
 }
}
,'span.hover2' : function(element) {
 element.onmouseover = function(event) {
  domTT_activate(this, event,   'content', 'Lorem ipsum dolor ipe',   'trail', true   );
 }
}
};

Behaviour.register(hover);
*/