fo.nav.addEventListener('click',() => {
	var newWin = window.open("about:blank", "Navigator", "width=250,height=400,location=yes, menubar=yes")
	for (var property in {
		appName: '',
		appCodeName: '',
		appVersion: '',
		platform: '',
		cpuClass: '',
		onLine: ''
	}) {
		newWin.document.write(property + ' = ' + navigator[property]+'<br>')
	}
})
fo.doc.addEventListener('click',() => {
	var newWin = window.open("about:blank", "Document", "width=250,height=400,location=yes, menubar=yes")
	for (var property in {
		readyState : '',
		referrer : '',
		scripts : '',
		strictErrorChecking : '',
		title : '',
		URL : ''
	}) {
		newWin.document.write(property + ' = ' + document[property]+'<br>')
	}
})