function devolveRq()
{
	try
	{
		rq = new XMLHttpRequest();
	}
	catch(erro1)
	{
		try
		{
			rq = new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch(erro2)
		{
			try
			{
				rq = new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch(erro3)
			{
				window.alert('Seu navegador não tem suporte a Ajax');
				rq = false;
			}
		}
	}
	return rq;
}
var ajax = devolveRq();

function listarEventos(dia, mes, ano){
	var rand = parseInt(Math.random()*999999999999);
	var datacompleta = ano+"-"+mes+"-"+dia;
	var url = "listarEventos.php?r="+rand+"&data="+datacompleta;
	ajax.open("GET", url, true);
	ajax.onreadystatechange = RespostaListarEventos;
	ajax.send(null);
}

function RespostaListarEventos(){
	if(ajax.readyState == 4){
		if(ajax.status == 200){
			var Resp = ajax.responseText;
			document.getElementById("content_main").innerHTML = Resp;
		}else{
			window.alert('ERRO: '+ ajax.statusText);
		}
	}else{
		document.getElementById("content_main").innerHTML = "<div class='box_content' style='text-align:center;'><img src='../images/loading.gif' alt='' border='0' width='50' height='50' /><p style='font-size:10px; font-weight:bold; text-align:center;'>Carregando...</p></div>";
	}
}