Input tags inside backgrid table

Question

I have created in backgridjs table custom "TagCell" (with implemented THIS).

So my cell looks like:

var TagCell = Backgrid.TagCell = Cell.extend({
  className: "tag-cell",
  events: {
      'click .tag a': 'removetag',
    },
  initialize: function (options) {
    TagCell.__super__.initialize.apply(this, arguments);
    this.title = options.title || this.title;
    this.target = options.target || this.target;
    var model = this.model;
    var rawData = this.formatter.fromRaw(model.get(this.column.get("name")), model);


  },
  removetag: function(event) {
      var that = this;
      that.model.set({location: ""},{success: alert("removed!"));

  },
  render: function () {
    this.$el.empty();
    var rawValue = this.model.get(this.column.get("name"));
    var formattedValue = this.formatter.fromRaw(rawValue, this.model);
    this.$el.append('<input name="location" class="tagggs" value="'+formattedValue+'" />');
    this.delegateEvents();
    return this;
  },
});

If I trying to call removetag function with event click to ".tag" model with empty location is saved. But If I trying to call function with click event to ".tag a" or directly to class ".rmvtag" function is not called. I think because jquery tags input is designed like this:

 $('<span>').addClass('tag').append(
     $('<span>').text(value).append('&nbsp;&nbsp;'),
     $('<a>', {
         href  : '#',
         class : 'rmvtag',
         text  : 'x'
     }).click(function () {
         return $('#' + id).removeTag(escape(value));
     })
 ).insertBefore('#' + id + '_addTag');

So there is click function with removetag() written directly after append element. How can I call save model function from backbone on click to rmvtag link? Thanks for any help!