drag.move(scroll_element, drag_element, dx, dy, ev, x, y, sx, sy) -> undefined
{HTMLElement}
the element to be scrolled
{HTMLElement}
{Number}
how far to scroll
{Number}
how far to scroll
{}
{Number}
the mouse position
{Number}
the mouse position
{}
{}
{undefined}
Scrolls an element then calls mouse a mousemove in the same location.