try{
    xmlhttp = new XMLHttpRequest();
}catch(ee){
    try{
        xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
    }catch(e){
        try{
            xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
        }catch(E){
            xmlhttp = false;
        }
    }
}

function ajax_carrega(URL,DIV_ID,METHOD,FIELDFOCUS){
   xmlhttp.open(METHOD, URL,true);
   xmlhttp.onreadystatechange=function() {
      if (xmlhttp.readyState==4){
	     var texto=xmlhttp.responseText
		 texto=texto.replace(/\+/g," ")
		 texto=unescape(texto)
		 document.getElementById(DIV_ID).innerHTML=texto
		 field_focus = document.getElementById(FIELDFOCUS)
		 if (FIELDFOCUS) {
			 field_focus.focus()
			 setTimeout('field_focus.focus()',1) 
		 }
	  }
   }
   if (DIV_ID == "POST"){
      http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
      http_request.setRequestHeader("Content-length", parameters.length);
      http_request.setRequestHeader("Connection", "close");
      http_request.send(parameters);
   } else{
      xmlhttp.send(null)
   }
}

function FecharAba(DIV){
	document.getElementById(DIV).innerHTML=" "
}