function abreJanela(url, width, height) {
    alert('abrindo: ' + url + '.');
    var parameters = "menubar=0,resizable=1,location=0,status=0,scrollbars=1";
    if (width!=undefined && width!="0"){
        parameters += ",width="+width;
    }
    if (height!=undefined && height!="0"){
        parameters += ",height="+height;
    }
	window.open(url, "janela", parameters);

}
function abreJanelaNova(url)
{
    window.open(url, "_blank");
}