function sendFXhr(url, field) {
	new Ajax.Updater(field, $(url).readAttribute('action'),
		{postBody: $(url).serialize(),
		onCreate:function(){
			$(url).disable();
			//$('loading').clonePosition($(url), {setWidth: false, setHeight: false});
			//$('loading').show();
		}/*,
		onComplete: function(){ $(url).enable(); $(url).reset(); $('loading').hide(); }*/
	});
}