function carregarCep(cepstr) {
new Ajax.Request( 'http://lxurl.net/cep/'+cepstr, { 
  method: 'get',
  onSuccess: function( transport ) {
    var cepTags = transport.responseXML.getElementsByTagName( 'tipo_logradouro' );
    var noded = cepTags[0].childNodes[0];
    var html = "";
	html = 'Endereço: <b>'+noded.nodeValue;
	cepTags = transport.responseXML.getElementsByTagName( 'logradouro' );
	noded = cepTags[0].childNodes[0];
    html += '. '+ noded.nodeValue+',<span id="divnumero"></span><br> ';
	cepTags = transport.responseXML.getElementsByTagName( 'bairro' );
	noded = cepTags[0].childNodes[0];
	html += noded.nodeValue + ', ';
	cepTags = transport.responseXML.getElementsByTagName( 'cidade' );
	noded = cepTags[0].childNodes[0];
    html += noded.nodeValue +' - ';
    cepTags = transport.responseXML.getElementsByTagName( 'estado_sigla' );
	noded = cepTags[0].childNodes[0];
	html += noded.nodeValue + '<br><br />';
	$('endereco').innerHTML = html;
  }
} 
);

}