function loginfortest () {
	var login = document.getElementById ('login');
	var password = document.getElementById ('password');
	var subm = document.getElementById ('submit');
	if (login && password && subm) {
		var loginreg = new RegExp('^[A-z0-9]{1}[A-z0-9\-]{1,18}[A-z0-9]{1}$', 'i');
		var passwordreg = new RegExp('^[A-z0-9\!\@\#\$\%\^\&\*\+\-]{4,16}$', 'i');
		subm.disabled = !login.value || login.value.length < 3 || !password.value || password.value.length < 3 || !loginreg.test(login.value) || !passwordreg.test(password.value);
	}
}