Multiple timespan markers for same location

Hi everyone
I’m working with DHTMLX Scheduler and currently having problem:
I’m trying to use two timespan markers for same columns, for example I’m marking past time in gray and weekends in red colors and I want to show both markers for weekend which was in past.
Now when time spans are crossing each other, weekend marker is ignored and only past time marker is showing.

Code fragment below:

[code]scheduler.init(‘scheduler-canvas’, scheNow, “timeline”);
scheduler.parse(scheEvents, “json”);

	scheduler.addMarkedTimespan({
		start_date:new Date('2000/1/1'),
		end_date:scheNow,
		css:'sche-past-marker'
	});

	scheduler.addMarkedTimespan({  
	    days:[0,6],
	    zones:'fullday',
	    css:'sche-weekend-marker'
	});

	scheduler.updateView();
	scheduler.filter_month = function(id, event) {
		return scheduler.getState().mode != "month";
	};[/code]

Please help.

Cheers
Max Leps