function change(div)
{
    var divid;
    
    username = 'none';
    password = 'none';
    domain   = 'none';
    email    = 'none';
    
    if(div==2082)
    {
        username = '';
        password = '';
        domain   = '';
    }
    else if(div==2086)
    {
        username = '';
        password = '';
        domain   = '';
    }
    else if(div==2095)
    {
        email    = '';
        password = '';
								domain   = '';
								
    }
    else if(div==3000)
    {
        domain = '';
    }
    
    document.getElementById('username').style.display = username;
    document.getElementById('password').style.display = password;
    document.getElementById('domain').style.display   = domain;
    document.getElementById('email').style.display    = email;
}

function set_target()
{
    var username, password, servername, login_option, protacal;
    
    username     = document.forms.login_form.user.value;
    password     = document.forms.login_form.pass.value;
    servername   = document.forms.login_form.server.value;
    login_option = document.forms.login_form.login_option.value;
    
    login_option == '2083' ? protacal = 'https://' : protacal = 'http://' ;
    
    if(login_option!=3000)
        document.forms.login_form.action = protacal + servername + ':' + login_option + '/login';
    else
        document.forms.login_form.action = protacal + servername + '/zen';
								
}
change(2082);