var master = null;

$(function() {
    var usercode = $(".usercode");
    var username = $(".username");
    usercode.keyup(function() { fieldsync(usercode[0], username[0]); });
    username.keyup(function() { fieldsync(username[0], usercode[0]); });

    var teamcode = $(".teamcode");
    var teamname = $(".teamname");
    teamcode.keyup(function() { fieldsync(teamcode[0], teamname[0]); });
    teamname.keyup(function() { fieldsync(teamname[0], teamcode[0]); });

    var familycode = $(".familycode");
    var familyname = $(".familyname");
    familycode.keyup(function() { fieldsync(familycode[0], familyname[0]); });
    familyname.keyup(function() { fieldsync(familyname[0], familycode[0]); });
});

function fieldsync(oSource, oTarget) {
    //debugger;
    //alert(oSource.value);
    if (master == null) {
        master = oSource;
    }
    else if (master == oTarget) {
        $(oSource).unbind("keyup");
        $(oTarget).unbind("keyup");
        return;
    }

    oTarget.value = oSource.value;

}