var loginwait = 0;

function modlogin(sfx, avatar, displayname, textdir) {
if (loginwait == 1) { return false; } //prevent double click

var login_uname = document.getElementById('uname'+sfx).value;
var login_pword = document.getElementById('pword'+sfx).value;
var login_token = document.getElementById('modtoken'+sfx).value;
var login_action = document.getElementById('loginform'+sfx).action;
if ((login_uname == '') || (login_pword == '')) {
alert('Please provide login credetials!');
return false;
}

var rnd = Math.floor((Math.random()*100)+1);
var edata = { 'uname': login_uname, 'pword': login_pword, 'modtoken': login_token, 'rnd': rnd };

var successfunc = function(xreply) {
loginwait = 0;
try {
var jsonObj = JSON.parse(xreply);
} catch(e) {
return false;
}
if (parseInt(jsonObj.success, 10) < 1) {
if (jsonObj.errormsg != '') {
alert(jsonObj.errormsg);
} else {
alert('Action failed!');
}
} else {
if (displayname == 2) {
var username_txt = jsonObj.uname;
} else if (jsonObj.firstname != '') {
var username_txt = jsonObj.firstname+' '+jsonObj.lastname;
} else if (jsonObj.email != '') {
var username_txt = jsonObj.email;
} else {
var username_txt = jsonObj.uname;
}

var logout_txt = document.getElementById('mlogin_logout'+sfx).innerHTML;
var profile_link = document.getElementById('mlogin_profile'+sfx).innerHTML;
var logout_redir = '';
if (document.getElementById('mlogout_redir'+sfx)) {
logout_redir = document.getElementById('mlogout_redir'+sfx).innerHTML;
}

var wrapObj = document.getElementById('modlogin_wrapper'+sfx);
wrapObj.innerHTML = '';
if (avatar == 1) {
var avObj = document.createElement('DIV');
avObj.className = 'elx5_modlogin_avatarbox';
avObj.innerHTML = '<a href="'+profile_link+'" title="'+jsonObj.uname+'"><img src="'+jsonObj.avatar+'" alt="avatar" /></a>';
wrapObj.appendChild(avObj);
var infoObj = document.createElement('DIV');
infoObj.className = 'elx5_modlogin_mainbox';
} else {
var infoObj = document.createElement('DIV');
infoObj.className = 'elx5_zero';
}

var profObj = document.createElement('A');
var profText = document.createTextNode(username_txt);
profObj.appendChild(profText);
profObj.title = jsonObj.uname;
profObj.className = 'elx5_modlogin_profile';
profObj.href = profile_link;
infoObj.appendChild(profObj);

var logoutlink = login_action.replace('ilogin', 'ilogout');
var outObj = document.createElement('A');
var outText = document.createTextNode(logout_txt);
outObj.appendChild(outText);
outObj.title = logout_txt;
outObj.className = 'elx5_modlogin_logout';
outObj.href = 'javascript:void(null);';
outObj.onclick = function(){ modlogout(logoutlink, logout_redir); };
infoObj.appendChild(outObj);
wrapObj.appendChild(infoObj);
}
};
var errorfunc = function (XMLHttpRequest, textStatus, errorThrown) {
loginwait = 0;
alert('Login failed with error message '+errorThrown);
};
loginwait = 1;
elxAjax('POST', login_action, edata, null, null, successfunc, errorfunc);
}


function modlogout(logoutlink, redirect_link) {
if (loginwait == 1) { return false; } //prevent double click
var rnd = Math.floor((Math.random()*100)+1);
var edata = { 'rnd': rnd };
var successfunc = function(xreply) {
loginwait = 0;
try {
var jsonObj = JSON.parse(xreply);
} catch(e) {
return false;
}
if (parseInt(jsonObj.success, 10) < 1) {
if (jsonObj.errormsg != '') {
alert(jsonObj.errormsg);
} else {
alert('Action failed!');
}
} else {
if (redirect_link == '') {
location.reload();
} else {
window.location.href = redirect_link;
}
}
};
var errorfunc = function (XMLHttpRequest, textStatus, errorThrown) {
loginwait = 0;
alert('Logout failed with error message '+errorThrown);
};
loginwait = 1;
elxAjax('POST', logoutlink, edata, null, null, successfunc, errorfunc);
}