code: function _fnSetScrollTop( iPos )
  	{
  		document.documentElement.scrollTop = iPos;
  		document.body.scrollTop = iPos;
  	}
docs: /*
  Function: _fnSetScrollTop
  Purpose:  Set the vertical scrolling position
  Returns:  -
  Inputs:   int:iPos - scrolltop
  Notes:    This is so nasty, but without browser detection you can't tell which you should set
  So on browsers that support both, the scroll top will be set twice. I can live with
  that :-)