Not able to add Users from People Picker using ECMA script

Hi,

I have written below ecma script to add multiple users from people picker.

But the problem is I am facing is,only one user is getting added into the group i.e. 

If I add user1,user2 only user2 is getting added into the group.

Please let me know if I am missing anything here.

$('#peoplePickerDiv .sp-peoplepicker-userSpan').each(function () {

                                                employeeid = $(this).attr('sid').split('\\')[1];

                                                alert(employeeid);

                                                user = clientContext.get_web().ensureUser(domain\\'+ employeeid);

                                                });          

                var userCollection = Group.get_users();

                userCollection.addUser(user);                  

                clientContext.load(user);

                clientContext.load(userCollection);        

                clientContext.load(Group);           

                clientContext.executeQueryAsync(Function.createDelegate(this, this.onUserAddedSucceeded), Function.createDelegate(this, this.onUserAddedFailed));

Regards,

Sudheer

Thanks & Regards, Sudheer