// JavaScript Document

var req; //To be an XMLHttpRequest Object
var ObjToRewrite = ''; // To use with assynchronous functions

// funcoes de carregamento de conteudo
function print_inner_html(param,obj){
	setObjToRewrite(obj);
	ObjToRewrite.innerHTML = "";
	loadXMLDoc(param);
}

function setObjToRewrite(id){
  // funcao que indica qual será o objeto a receber novo conteudo
  ObjToRewrite = document.getElementById(id);
}

function loadXMLDoc(url){
	if (window.XMLHttpRequest) {
 		req = new XMLHttpRequest();
 		req.onreadystatechange = processReqChange;
 		req.open("GET", url, true); 
 		req.send(null);
	} else if (window.ActiveXObject) {
		try {
			req = new ActiveXObject("Msxml2.XMLHTTP.4.0");
		} catch(e) {
			try {
				req = new ActiveXObject("Msxml2.XMLHTTP.3.0");
			} catch(e) {
				try {
					req = new ActiveXObject("Msxml2.XMLHTTP");
				} catch(e) {
					try {
						req = new ActiveXObject("Microsoft.XMLHTTP");
					} catch(e) {
						req = false;
					}
				}
			}
		}
		if (req) {
			req.onreadystatechange = processReqChange;
			req.open("GET", url, true);
			req.send();
		}
	}
}

function processReqChange(){
	if (req.readyState == 4) {
		if (req.status == 200) {
			ObjToRewrite.innerHTML =  req.responseText;
		} else {
			alert( "Houve um problema ao obter os dados:\n" + req.statusText);
		}
	}
	return false;
}