// JavaScript Document

function abrirPag(valor) {
	var url = valor;
	
	xmlRequest.onreadystatechange = mudancaEstado;
	xmlRequest.open("GET",url,true);
	xmlRequest.send(null);
	
	if (xmlRequest.readyState == 1) {
		document.getElementById("conteudo_mostrar").innerHTML = "<img src='img/loader.gif' style='margin-left:100px; margin-top:70px;'>";
	}

	return url;

}
function mudancaEstado(){
	if (xmlRequest.readyState == 4){
		document.getElementById("conteudo_mostrar").innerHTML = xmlRequest.responseText;
	}
}