//preload background-a na subbutona:
	var About_High = new Image();
	About_High.src = 'http://spatia-tour.com/graphics/About_High.png';
	var Air_High = new Image();
	Air_High.src = 'http://spatia-tour.com/graphics/Air_High.png';
	var Bus_High = new Image();
	Bus_High.src = 'http://spatia-tour.com/graphics/Bus_High.png';
	var Cont_High = new Image();
	Cont_High.src = 'http://spatia-tour.com/graphics/Cont_High.png';
	var Eco_High = new Image();
	Eco_High.src = 'http://spatia-tour.com/graphics/Eco_High.png';
	var Home_High = new Image();
	Home_High.src = 'http://spatia-tour.com/graphics/Home_High.png';