[Rise]

var focus = 1;
var defaultTitle = document.title;
window.onblur = function() {
	focus = 0;
	migalka();
};
window.onfocus = function() {
	focus = 1;
};
function migalka() {
	if (focus) {
		document.title = defaultTitle;
		return;
	}
	document.title = (document.title == 'НЕТ ФОКУСА') ? 'МИГАЮ': 'НЕТ ФОКУСА';
	setTimeout(migalka, 1000);
}