var name;var NoVarPassword;
var who=prompt('Кто пришел?',name);
if(who=='admin'){
var password=prompt('пароль?',NoVarPassword);
if(password=='123'){
alert('welcome back,admin');
}else if(password==null){
alert('enter denied(password)');
}else{
alert('password error');
}}else if(who==null){
alert("enter denied(name)");
}else{
alert('go away');
}