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

fila=[];
ifila=0;

function ajaxLoad(url, destino){
	if(destino!=Object){ destino = document.getElementById(destino); }
	if(destino.nodeName=="SELECT"){
		while(destino.options.length>0)destino.options[0]=null;
		destino.options[0]=new Option(" -- Aguarde -- "," -- Aguarde -- ");
	} else {
		destino.innerHTML="<table width=\"250\" border=\"0\" cellpadding=\"5\" cellspacing=\"5\" style=\"background-color: #eeeee0; font-family: Arial, Helvetica, sans-serif; font-size: 14px; color: #7f7b55; text-decoration: none; border: 1px solid #bcb998; \"><tr><td><table width=\"250\" height=\"60\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\"><tr><td width=\"50\" height=\"50\" rowspan=\"2\" align=\"center\"><img src=\"/30-0.gif\" width=\"32\" height=\"32\" /></td><td style=\"font-size: 18px; font-weight:bold;\">Aguarde...</td></tr><tr><td>Carregando conte&uacute;do... </td></tr></table></td></tr></table>";
	}
	fila[fila.length]=[url,destino];
	if((ifila+1)==fila.length)ajaxRun();
}

function ajaxShow(valor,destino){
	if(destino.nodeName=="SELECT"){
		while(destino.options.length>0)destino.options[0]=null;
		if(valor.charAt(0)=="[" && valor.charAt(valor.length-1)=="]"){
			var destinoTmp=eval(valor);
			for(var i=0;i<destinoTmp.length;i++){
				destinoTmp[i][0]=unescape(destinoTmp[i][0]);
				destinoTmp[i][1]=unescape(destinoTmp[i][1]);
				destino.options[destino.options.length]=new Option(destinoTmp[i][1],destinoTmp[i][0]);
			}
		} else {
			destino.options[destino.options.length]=new Option(valor,valor);
		}
	} else {
		destino.innerHTML = unescape(valor.replace(/\+/g," ")); 
	}
}

function ajaxRun(){
	url = fila[ifila][0];
	destino = fila[ifila][1];
	var curDateTime = new Date();
	if (url.indexOf("?")>0){
		url = url+"&t="+curDateTime;
	}else{
		url = url+"?t="+curDateTime;
	}
	xmlhttp.open("GET", url, true);
	xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=ISO-8859-1");
	xmlhttp.setRequestHeader("Cache-Control", "no-store, no-cache, must-revalidate");
	xmlhttp.setRequestHeader("Cache-Control", "post-check=0, pre-check=0");
	xmlhttp.setRequestHeader("Pragma", "no-cache");
	xmlhttp.onreadystatechange=function() {
		if (xmlhttp.readyState==4){
			switch(xmlhttp.status){
				case 200: { ajaxShow(xmlhttp.responseText,destino); break }
				case 204: { ajaxShow("O servidor n&atilde;o respondeu ao chamado",destino); break }
				case 400: { ajaxShow("Endere&ccedil;o inv&aacute;lido",destino); break }
				case 403: { ajaxShow("Voc&ecirc; n&atilde;o possui permiss&atilde;o para acessar esse arquivo",destino); break }
				case 404: { ajaxShow("Arquivo n&atilde;o encontrado",destino); break }
				case 500: { ajaxShow("Erro interno do servidor...",destino); break }
				case 502: { ajaxShow("Servidor ocupado.",destino); break }
				case 503: { ajaxShow("O servidor n&atilde;o respondeu no tempo limite",destino); break }
				 default: { ajaxShow("Algum erro ocorreu ao carregar este conte&uacute;do...",destino); break }
			}
			ifila++;
			if(ifila<fila.length)setTimeout("ajaxRun()",20);
		}
	}
	xmlhttp.send(url);
}

function ajaxFormUpdate(f, url, destino, url2, destino2){
	if(f!=Object){ f = document.getElementById(f); };
	var query=url;
	for (i=0;i<f.elements.length;i++){
		query += i==0 ? '?' : '&';
		query += f.elements[i].name + '=' + f.elements[i].value;
	}
	ajaxLoad(query, destino);
	ajaxLoad(url2, destino2);
}


function ajaxForm(f, url, destino){
	if(f!=Object){ f = document.getElementById(f); };
	var query=url;
	for (i=0;i<f.elements.length;i++){
		query += i==0 ? '?' : '&';
		query += f.elements[i].name + '=' + f.elements[i].value;
	}
	ajaxLoad(query, destino);
}