Any event triggered on autocomplete?

Question

I have a pretty simple form. When the user types in an input field, I want to update what they\'ve typed somewhere else on the page. This all works fine. I\'ve bound the

Answer 1

As Xavi explained, there's no a solution 100% cross-browser for that, so I created a trick on my own for that (5 steps to go on):
1. I need a couple of new arrays:

window.timeouts     = new Array();
window.memo_values  = new Array();

2. on focus on the input text I want to trigger (in your case "email", in my example "name") I set an Interval, for example using jQuery (not needed thought):

jQuery('#name').focus(function ()
{
    var id = jQuery(this).attr('id');
    window.timeouts[id] = setInterval('onChangeValue.call(document.getElementById("'+ id +'"), doSomething)', 500);
});

3. on blur I remove the interval: (always using jQuery not needed thought), and I verify if the value changed

jQuery('#name').blur(function ()
{
    var id = jQuery(this).attr('id');
    onChangeValue.call(document.getElementById(id), doSomething);
    clearInterval(window.timeouts[id]);
    delete window.timeouts[id];
});

4. Now, the main function which check changes is the following

function onChangeValue(callback)
{
    if (window.memo_values[this.id] != this.value)
    {
        window.memo_values[this.id] = this.value;

        if (callback instanceof Function)
        {
            callback.call(this);
        }
        else
        {
            eval( callback );
        }
    }
}

Important note: you can use "this" inside the above function, referring to your triggered input HTML element. An id must be specified in order to that function to work, and you can pass a function, or a function name or a string of command as a callback.

5. Finally you can do something when the input value is changed, even when a value is selected from a autocomplete dropdown list

function doSomething()
{
    alert('got you! '+this.value);
}

Important note: again you use "this" inside the above function referring to the your triggered input HTML element.

WORKING FIDDLE!!!
I know it sounds complicated, but it isn't.
I prepared a working fiddle for you, the input to change is named "name" so if you ever entered your name in an online form you might have an autocomplete dropdown list of your browser to test.