public SortableBehavior setCursorAt(CursorAtEnum cusorAt)
	{
		this.options.putLiteral("cursorAt", cusorAt.toString().toLowerCase().replace('_', ' '));
		return this;
	}
public SortableBehavior setCursorAt ( CursorAtEnum cusorAt ) { this . options . putLiteral ( "cursorAt" , cusorAt . toString ( ) . toLowerCase ( ) . replace ( '_' , ' ' ) ) ; return this ; }
Moves the sorting element or helper so the cursor always appears to drag from the
same position. Coordinates can be given as a hash using a combination of one or two
keys: { top, left, right, bottom }

@param cusorAt
@return instance of the current behavior