function chgClima(cid, dia){
	oPrev = document.getElementById('plg_previsao');
	oPrev.innerHTML = '<div class="loader"><img id="img_loader" src="/plugins/previsao/loader.gif" width="16" height="16" /></div>';
	$.ajax({
		type: "POST",
		url: "/plugins/previsao/ajax.asp",
		data: "cid="+cid+'&dia='+dia,
		success: function(msg){
			oPrev.innerHTML = ajxStr(msg);
		},
		error: function (xhr){
			oPrev.innerHTML = xhr.statusText;
		}
	});
}