Minim takes wing

I've properly objectified and trimmed the minimal Ajax example I started work on earlier. It's now 336 bytes. My target is to keep the whole thing to under 2k, so I have 1712 bytes to put some other functions in.

It now looks like this:


function TinyAjax(callback) {
this._req = null;
this._sc = function() {
if (_req.readyState == 4 && _req.status == 200) {
callback(_req.responseText);
}
};

this.ajaxRequest = function(url) {
_req = new XMLHttpRequest();
_req.onreadystatechange = this._sc;
_req.open("GET", url, true);
_req.send();
} ;
}


UPDATE: the above has a scoping error in it and _req ends up in the global scope. Ooops (or rather, not OOPS). I am fixing it this evening along with a periodical updater object, which is also bigged down witha weird scoping issue.

Usage is simple: you pass the TinyAjax constructor a function that will handle the response then call the desired URL with TinyAjax.ajaxRequest() method. The class will then do all the work for you.

I haven't yet got hold of a Windows Mobile device to test on, so this currently only works with standards favouring browsers like Opera and S60. When I get one I'll add whichever object Windows thinks it wants.

It's now in a file called minim.js and can be got from here: http://slackr.eu/m/src/minim.js.txt