/**
 * @author Feira-74
 */
function criaXML()
{
    try{ xmlhttp = new XMLHttpRequest();}
    catch(ee){
                try     {   xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
                        //alert("msxml");
                        }
                catch(e){
                            try{xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
                        //alert("msxml2");
                               }
                            catch(E){xmlhttp = false;}
                        }
             }
    return xmlhttp;
}