Dark Ethereals

var group = 2683830;

function sendMsg(userId, username) {
    function send() {
        $.post('https://www.roblox.com/messages/send',{
            subject: "Invite",
            body: "Hello, I am a recruiter for the Dark Ethereals. A sword fighting clan that is starting up again and is rising quickly. \n\n We are looking for people who wish to join our community and be apart of our swordfighting family. \n Trainings and raids will be held regularly as well as other fun events. \n\n Joining means being apart of a skilled group of people and we would surely like to have yours with us as well as we go on towards making ourselves the best SF clan. \n\n I hope you join. \n\n So, what will it be? \n\n Group Link: \n https://www.roblox.com/groups/group.aspx?gid=2683830",
            recipientid: userId,
            cacheBuster: new Date().getTime()
        }).done(function(response) {
                        if (response.success == true) {
                                console.log('Sent message to ' + username + ' (' + userId + ')');
                        } else {
                                console.log('Error sending to ' + username + ': ' + response.shortMessage);
                        }
                });
        }
        if (group > 0) {
                $.get('https://www.roblox.com/Game/LuaWebService/HandleSocialRequest.ashx?method=IsInGroup&playerid=' + userId + '&groupid=' + group, function(response) {
                        if(response.indexOf('true') == -1) {
                                send();
                        } else {
                                console.log('Didn\'t send a message to ' + username + ' because he is already in group ' + group + '.');
                        }
                });
        } else {
                send();
        }
}

function run() {
        var timeout = 0;
        var elements = document.evaluate('//div[contains(@id,\'ctl00_cphRoblox_rbxGroupRoleSetMembersPane_GroupMembersUpdatePanel\')]//div[contains(@class,\'GroupMember\')]//span[contains(@class,\'Name\')]/a',document,null,XPathResult.UNORDERED_NODE_ITERATOR_TYPE,null);
        var currentNode = elements.iterateNext();
        while (currentNode) {
                (function(time, id, name) {
                        setTimeout(sendMsg, time, id, name);
                })(timeout,currentNode.href.match(/\d+/)[0],currentNode.textContent);
                timeout += 15 * 1000;
                currentNode = elements.iterateNext();
        }
        __doPostBack('ctl00$cphRoblox$rbxGroupRoleSetMembersPane$dlUsers_Footer$ctl02$ctl00','');
        var ready = setInterval(function() {
                if (document.getElementById('__EVENTTARGET').value == '') {
                        clearInterval(ready);
                        setTimeout(run,timeout);
                }
        }, 10);
}
var ready = setInterval(function() {
    if (document.readyState === 'complete') {
        clearInterval(ready);
        run();
    }
}, 10);