are custom events possible?

[Cool Mentalist]

I know you can use custom events in other scripts but can u do it in
javascript? how?

[Yann-Erwan Perio]

Re: are custom events possible?

Cool Mentalist wrote:
[color=blue]
> I know you can use custom events in other scripts but can u do it in
> javascript? how?[/color]


Well, the DOM Events specification does provide some ways to create and
dispatch events, be it regular or custom events. This is working at
least in Mozilla:

<span id="foospan">Di spatch a foo event</span>
<script type="text/javascript">
var d=document, fs;
if(d.getElement ById){
fs=d.getElement ById("foospan") ;
if(fs && d.createEvent){
fs.onclick=func tion(evt){
var e=document.crea teEvent("Events ");
if(typeof e!="undefined") {
e.initEvent("fo o", false, false);
this.dispatchEv ent(e);
}
}
fs.addEventList ener("foo", function(evt){
alert("Hello I'm an event of type "+evt.type) ;
}, false);
}
}
</script>


The specification can be found at
<URL: http://www.w3.org/TR/2003/NOTE-DOM-Level-3-Events-20031107/>

Unfortunately, the specification isn't really supported across browsers.
IE permits to create and dispatch "regular" events using proprietary
methods ("createEventOb ject" and "fireEvent" ), but that's pretty much it
I believe.

As for creating events in pure javascript, this isn't possible, you'd
need to implement them yourself with functions/behaviors.


HTH
Yep.