var loginDialog;
var registerDialog;

function LoginForm(newLocation)
{
    newLocation = (typeof newLocation == 'undefined' ? window.location.href : newLocation);
    return "<form name='loginForm' action='./login.php' onSubmit='return checkLoginForm()' method='POST'><table class='tablenoborders'><tr><td  align='right'>Логин:</td><td><input type='text' name='login' placeholder='Введите логин'></td></tr><tr><td align='right'>Пароль:</td><td><input type='password' name='password' placeholder='Введите пароль'></td></tr><tr><td colspan='2'><span id='loginerror' style='color:red;display:none;'>Не все поля заполнены!</span></td></tr><tr><td colspan='2'><input value='Войти' class='myButton' type='submit' name='subm' ></td></tr><tr><td colspan='2'><a href='./registr.php'>Зарегистрироваться</a></td></tr></table><input name='camefrom' type='hidden' value='" + newLocation + "'></form>";
}


function crLoginDialog()
{
    if (loginDialog == null)
    {
        loginDialog = document.createElement('div');
        document.body.appendChild(loginDialog);
        loginDialog.outerHTML = "<div id='LoginDialog' class='modalDialog shown lgnDialog'><div align='center'><a href='' onclick='loginDialog.classList.remove(\"shown\");return false;' title='Close' class='close'>X</a><p>Введите, пожалуйста, логин и пароль.</p>" + LoginForm() + "</div></div>";
        loginDialog = document.getElementById('LoginDialog');
    }
    else
        loginDialog.classList.add('shown');
}

function RegisterForm(newLocation)
{
    newLocation = (typeof newLocation == 'undefined' ? window.location.href : newLocation);
    return "<form action='./registr.php' name='RegisterForm' onSubmit='return checkRegistrForm();' method='POST'><table class='tablenoborders'><tr><td  align='right'>Логин:</td><td><input type='text' name='login' placeholder='Введите логин'></td></tr><tr><td  align='right'>Пароль:</td><td><input type='password' name='password' placeholder='Введите пароль'></td></tr><tr><td  align='right'>e-mail:</td><td><input type='text' name='email' placeholder='Введите email'></td></tr><tr><td  align='right'>ФИО:</td><td><input type='text' name='fio' placeholder='Введите ФИО'></td></tr><tr><td align='right'>Поток:</td><td><select name='group'><option value='blank'>Выберите поток</option><option value='86'>НВ1</option><option value='87'>НВ2</option><option value='88'>НВ3</option><option value='89'>НВ4</option><option value='90'>НВ5</option><option value='91'>НВ6</option><option value='92'>НВ7</option><option value='93'>НВ8</option></select></td></tr><tr><td colspan='2'><span id='registererror' style='color:red;display:none;'>Не все поля заполнены корректно!</span></td></tr><tr><td colspan='2'><input class='myButton' value='Зарегистрироваться' type='submit' name='subm' ></td></tr></table><input name='camefrom' type='hidden' value='" + newLocation + "'></form>";
}

function crRegisterDialog()
{
    if (registerDialog == null)
    {
        registerDialog = document.createElement('div');
        document.body.appendChild(registerDialog);
        registerDialog.outerHTML = "<div id='RegisterDialog' class='modalDialog shown regDialog'><div align='center'><a href='' onclick='registerDialog.classList.remove(\"shown\");return false;' title='Close' class='close'>X</a><h2>Регистрация</h2>" + RegisterForm() + "</div></div>";
        registerDialog = document.getElementById('RegisterDialog');
    }
    else
        registerDialog.classList.add('shown');
}

function checkLoginForm()
{
    var checkForm=document.forms['loginForm'];
    if (checkForm['password']==null || checkForm['password'].value == '' || checkForm['login']==null || checkForm['login'].value == ''){
        document.getElementById('loginerror').style.display='inline';
        return false;
    }
    else
        return true;
}

function checkRegistrForm()
{
    var checkForm=document.forms['RegisterForm'];
    var emailChecker=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
    if (checkForm['password']==null || checkForm['password'].value == '' || checkForm['login']==null || checkForm['login'].value == '' || checkForm['email']==null || checkForm['email'].value == '' || checkForm['fio']==null || checkForm['fio'].value == '' || checkForm['group'].selectedIndex==0 || !emailChecker.test(checkForm['email'].value)){
        document.getElementById('registererror').style.display='inline';
        return false;
    }
    else
        return true;
}