Drag'n'Drop into invisible object

Hey guys,

so I figured out, what the problem is (had to pay more effort in search). Its because of the <div> element --> http://support.smartbear.com/viewarticle/56466/#Remarks

Is there still a way to perform the drag action from the modal window to the main window since the <div>-element is not supported?

PS: But still i wonder why does this code work... -->

function DragNDrop()
{
  var panel;
  var panel2;
  panel = Aliases.browser.pageAltivarLogin.panelWidgetmenu;
  panel.panelMenuopenerUiStateWhiteout.Click();
  panel.panelWidgetmenuitemUiDraggable.HoverMouse();
  panel2 = panel.panelWidgetmenuitemUiDraggableHo;
  panel2.Drag(103, 27, -970, -390);
  panel.panelMenuopenerUiStateWhiteout.Click();
}

...and the other one doesn't?

Thanks for help in advance