Updating data in select (meteor js)?

Question

meteor

Hello!
I do multilingualism on the site, the language is changed using the drop-down list (select). After choosing another language, the text in the select itself also changes, but this happens with a visible slight delay. For example, the language is "Russian", when "English" is selected, "English" is shown in Russian letters for a fraction of a second, followed by the English version! How everything is implemented: I created a reactive variable with three languages, and track their changes Tracker.autorun, then using helpers I pass the text of the current language. Actually the question itself: how to track the complete change in reactive variables => change in helpers? something similar to how waitOn is implemented in the router, and the loading template is passed to onBeforeAction while the data is loading!
https://jsfiddle.
var langSite = new ReactiveVar('ru'),
objLang = new ReactiveDict(),
curObjLang = new ReactiveDict('curLang');
//object with text of different languages
​​objLang.set('lang', {
ua: {
selectLang: {
ukrainian: 'Ukrainian',
russian: 'Russian',
english: 'English'
}
},
ru: {
selectLang: {
ukrainian: 'Ukrainian',
russian: 'Russian',
english: 'English'
}
},
en: {
selectLang: {
ukrainian:
russian: 'Russian',
english: 'English'
},
}
}
//change our language in the object by change in the select
Template.layout.events({
'change #language': function(e) {
var valLand = $(e .target).val();
if (valLand === 'ru') {
langSite.set('ru');
}
else if (valLand === 'ua') {
langSite.set('ua');
}
else if(valLand === 'en') {
langSite.set('en');
}
}
});
//handling changes and passing them to
Meteor helpers.
Tracker.autorun(function(){
Template.layout.onRendered(function(){
$('#language').find('option[value='+ langSite.get() +']').attr('selected ', 'selected');
});
if (langSite.get() === 'ru') {
curObjLang.set('curLang', objLang.get('lang').ru);
}
else if(langSite .get() === 'ua') {
curObjLang.set('curLang', objLang.get('lang').ua);
}
else if(langSite.get() === 'en') {
curObjLang .set('curLang', objLang.get('lang').en);
}
Template.switchLang.helpers({
ukraine: function(){
return curObjLang.get('curLang').selectLang.ukrainian;
},
russian: function(){
return curObjLang.get('curLang').selectLang.russian;
},
english: function(){
return curObjLang.get('curLang').selectLang.english;
}
});
});
});
//html itself
{{ukraine}}{{russian}}{{english}}