114 	,	borderPanes:	"north,south,west,east".split(",")  property in $.layout.config
1996 		panes = panes ? panes.split(",") : _c.borderPanes;
2191 		$.each(_c.borderPanes, function (i, pane) {
2410 		panes = panes ? panes.split(",") : _c.borderPanes;
2457 		panes = panes ? panes.split(",") : _c.borderPanes;
2625 		panes = panes ? panes.split(",") : _c.borderPanes;
4470 		panes = panes ? panes.split(",") : _c.borderPanes;
4896 			$.each(_c.borderPanes, function (i, p) { // loop each pane to check its hotkey
5393 			$.each($.layout.config.borderPanes, function (idx, pane) {
5650 		borderPanes:	"north,south,west,east"  property in $.layout.buttons.config
5663 			$.each($.layout.buttons.config.borderPanes.split(","), function (ii, pane) {
5696 		else if ($.layout.buttons.config.borderPanes.indexOf(pane) === -1) { // invalid 'pane' sepecified
5864 			var pane = $.layout.buttons.config.borderPanes[i];