window.onload = function() {

	var img_home_en_off = new Image();
	img_home_en_off.src = './en/images/background/home_off.jpg';

	var img_home_en_on = new Image();
	img_home_en_on.src = './en/images/background/home_on.jpg';

	var img_home_es_off = new Image();
	img_home_es_off.src = './es/images/background/home_off.jpg';

	var img_home_es_on = new Image();
	img_home_es_on.src = './es/images/background/home_on.jpg';

}