function TinyAjax(callback) {
	this._req = null;  
 	this._sc = function() {
		if (_req.readyState == 4 && _req.status == 200) {
				callback(_req.responseText);
			}
	};
	
	this.ajaxRequest = function(meth, url, as) {
		_req = new XMLHttpRequest();
		_req.onreadystatechange = this._sc;
		_req.open(meth, url, as); 
		_req.send();
	};
}