How to handle events of objects outside of a View in backbone.js?

Question

As in the backbone-todolist example,I have a collection of elements. I made 2 views, one for the list and one for each element. It works great.

However, as I need the elements of the list to be modified, in the view of the element I handle the modify event opening a popup with the colorbox plugin which contains an html form. The html is dynamically created and passed to the colorbox element.

I use colorbox and backbone-form additional plugins.

Now: the popup IS NOT A CHILD (in the DOM) of my view, so I don't know how to fire the event on the 'button submit' action.

Here is a snippet of the code (omitted unuseful parts):

// ** view of the single collection element
window.listElement = Backbone.View.extend({
    tagName: 'li',

    [...]

    updateElement:function(){
        //creates the update form in a popup menu
        var form=new Backbone.Form({BLA BLA BLA...I TESTED IT, IT WORKS.
            }).render();
        $(form.el).append('<input id="update-btn" type="button" name="updateBtn" value="Update" style="display: block;">');
        self=this;

        //HERE COME THE TROUBLES
        $.colorbox({
            html:form.el,
            [...] /SOME OTHER PARAMS
            }).delegate('#update-btn','click',self.saveEl());
        },
    saveEl:function(){
        console.log("now saving..")},       
        },

What happens is that the saveEl method (or function?, which term would be more correct?) is fired when the popup is opened.

I also tried with a different version of the code:

    initialize: function(){//added this in the initialize function
        _.bindAll(this, "saveEl");
        $('#update-btn').bind('click', this.saveEl());
          },
    updateElement:function(){
        //LIKE BEFORE BUT WITHOUT DELEGATE FUNCTION
        $.colorbox({
            html:form.el,
            [...] /SOME OTHER PARAMS
            });
        },
        saveEl:function(){
           console.log("now saving..")},        
        },

In this second case, the saveEl function is called when the view is created (thus one time for each element of the list).

I know that I colud make a view for the popup, but somEthing says me that it's too complicated and that there should me a more simple architecture.

The question, indeed, is more general: is it possible to handle events fired by DOM object outside the scope of $(this.el) without creating a view for them?

thanks in advance.

-----------------UPDATE:--------------

The final version of working code is the following:

// ** view of the single collection element
window.listElement = Backbone.View.extend({
    tagName: 'li',

    [...]

    updateElement:function(){
        //creates the update form in a popup menu
        var form=new Backbone.Form({BLA BLA BLA...I TESTED IT, IT WORKS.
            }).render();
        $(form.el).append('<input id="update-btn" type="button" name="updateBtn" value="Update" style="display: block;">');
        $(form.el).delegate('#update-btn','click',this.saveEl())
        $.colorbox({
            html:form.el,
            [...] /SOME OTHER PARAMS
            });
        },
    saveEl:function(){
        console.log("now saving..")},       
        }
     });