getPaneSize = function (pane, inclSpace) {
		var 
			$P	= $Ps[pane]
		,	o	= options[pane]
		,	s	= state[pane]
		,	oSp	= (inclSpace ? o.spacing_open : 0)
		,	cSp	= (inclSpace ? o.spacing_closed : 0)
		;
		if (!$P || s.isHidden)
			return 0;
		else if (s.isClosed || (s.isSliding && inclSpace))
			return cSp;
		else if (_c[pane].dir === "horz")
			return $P.outerHeight() + oSp;
		else // dir === "vert"
			return $P.outerWidth() + oSp;
	}
Calculates current 'size' (outer-width or outer-height) of a border-pane - optionally with 'pane-spacing' added

@param  {(string|!Object)}	pane
@param  {boolean=}			[inclSpace=false]
@return {number}				Returns EITHER Width for east/west panes OR Height for north/south panes