+ var v = this.grid.getView(),
+ top = parseInt(this.el.dom.style.top, 10),
+ scroll = v.scroller.dom.scrollTop,
+ h = this.el.getHeight();
+
+ if(top + h >= scroll){
+ t.initTarget(this.items.last().getEl());
+ if(!t.rendered){
+ t.show();
+ t.hide();
+ }
+ t.body.update(msg);
+ t.doAutoWidth();