function init() {
	load_js('high_tech');
	setTimeout(call_function,50,['high_tech']);
	load_js('balloon');
	setTimeout(call_function,50,['balloon']);
	load_js('facebook');
	setTimeout(call_function,50,['facebook']);
}
function load_js(js_file) {
	var fullUrl = '/js/'+js_file+'.js';
	(function() {
		var s = document.createElement('script');
		s.type = 'text/javascript';
		s.src = fullUrl;
		s.async = true;
		document.getElementById('bkg').appendChild(s);
	}());
}
function call_function(script) {
	if ((script == 'high_tech') && (window.high_tech_init)) {
		high_tech_init();
	} else if ((script == 'balloon') && (window.balloon_init)) {
		balloon_init();
	} else if ((script == 'facebook') && (window.facebook_init)) {
		facebook_init();
	} else {
		setTimeout(call_function,50,[script]);
	}
}