$('icao').observe('keypress',catchKey);

function catchKey(event) {
	if (event.keyCode == 13)
	showWx('icao');
	else return false;
}

function showWx(f) {
	icao = $(f).value;
	icao = icao.toUpperCase();
	$(f).value = icao;
	x_getWx(icao, function(r) {
		if (r) {
			$('metar').innerHTML = r;
		}
	});
}

function _fade(nr,sc1,sc2) {
	box = 'mbox'+nr;
	hgt = parseInt($(box).style.height);
	//console.log('h: '+$(box).style.height);
	if (hgt < 50) {
		scale = sc1;
		bgimg = 'media/layout/textbox_bg2.gif';
	} else {
		scale = sc2;
		bgimg = 'media/layout/textbox_bg0.gif';
	}
	new Effect.Scale($(box),scale,{
		scaleContent: false,
		scaleX: false,
		duration: 0.7
	});
	$(box).setStyle({
		backgroundImage: 'url('+bgimg+')'
	});
	//console.log('h: '+$(box).style.height+', '+scale);
}