Vulcan/client/templates/comment_form.js

Template.comment_form.rendered = function(){
	if(Meteor.user() && !this.editor){
		this.editor = new EpicEditor(EpicEditorOptions).load();
	}
}

Template.comment_form.events = {
  'click input[type=submit]': function(e, instance){
    e.preventDefault();
	var $comment = $('#comment');
	var content = instance.editor.exportFile();

    if(selectedCommentId=Session.get('selectedCommentId')){
    	// post a child comment
	    var parentCommentId =selectedCommentId;
	    var postId=Comments.findOne(parentCommentId).post;
        var commentId=Meteor.call('comment', postId, parentCommentId, content);
        Session.set('selectedCommentId', null);
    	Router.navigate('posts/'+postId, {trigger:true});
    }else{
    	// post a root comment
    	var parentCommentId=null;
    	var postId=Session.get('selectedPostId');
        var commentId=Meteor.call('comment', postId, parentCommentId, content);
        instance.editor.importFile('editor', '');
    }

    trackEvent("new comment", {'postId': postId, 'commentId': commentId});

  }
};