var xmlHttp;
var n;

function listarMeses(str){ 
	n = 1;
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null){
		alert ("Estamos confrontando problemas. Por favor trate más tarde.");
		return;
	} 
	if ((str=="") || (str==0)){
		var sDefault = '<select name="select_mes" id="select_mes" onChange="listarDias(this.value)">';
		sDefault += '<option value="0">--</option>';
		sDefault += '<option value="01">01</option>';
		sDefault += '<option value="02">02</option>';
		sDefault += '<option value="03">03</option>';
		sDefault += '<option value="04">04</option>';
		sDefault += '<option value="05">05</option>';
		sDefault += '<option value="06">06</option>';
		sDefault += '<option value="07">07</option>';
		sDefault += '<option value="08">08</option>';
		sDefault += '<option value="09">09</option>';
		sDefault += '<option value="10">10</option>';
		sDefault += '<option value="11">11</option>';
		sDefault += '<option value="12">12</option>';
		sDefault += '</select>';
		document.getElementById("listaMeses").innerHTML=sDefault;
		return;
	} 
	//document.getElementById("clock").style.display = "block";
	var url="listar_meses.asp";
	url=url+"?q="+str;
	url=url+"&sid="+Math.random();
	xmlHttp.onreadystatechange=stateChanged;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}

function listarDias(str){ 
	          n = 2;
	var       f = document.getElementById("fprensa");
	var       y = document.getElementById("select_year");
	var   sYear = y.options[y.selectedIndex].text;
	xmlHttp = GetXmlHttpObject();
	if (xmlHttp==null){
		alert ("Estamos confrontando problemas. Por favor trate más tarde.");
		return;
	} 
	if ((str=="") || (str==0) || (sYear=="----")) {
		var sDefault = '<select name="select_dia" id="select_dia" onChange="doCheck()">';
		sDefault += '<option value="0">--</option>';
		sDefault += '</select>';
		document.getElementById("listaDias").innerHTML=sDefault;
		return;
	} 
	//document.getElementById("clock").style.display = "block";
	var url="listar_dias.asp";
	url=url+"?q="+str+"&y="+sYear;
	url=url+"&sid="+Math.random();
	xmlHttp.onreadystatechange=stateChanged;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}

function desplegarNoticia(strMmdd, y){ 
	n = 3;
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null){
		alert ("Estamos confrontando problemas. Por favor trate más tarde.");
		return;
	} 
	if ((strMmdd=="") || (strMmdd==0) || (y==0)) {
		var sDefault = '<p>Noticia Nueva</p>';
		//document.getElementById("divNoticias").innerHTML=sDefault;
		return;
	} 
	document.getElementById("divNoticias").style.color = "#B0AFA3";
	document.getElementById("loading").style.display = "block";
	var url="desplegar_noticia.asp";
	url=url+"?q="+strMmdd+"&y="+y;
	url=url+"&sid="+Math.random();
	xmlHttp.onreadystatechange=stateChanged;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}

function stateChanged(){ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){ 
		if(n==1){
			document.getElementById("listaMeses").innerHTML=xmlHttp.responseText;
		}
		if(n==2){
			document.getElementById("listaDias").innerHTML=xmlHttp.responseText;
			//document.getElementById("clock").style.display = "none";
		}
		if(n==3){
			document.getElementById("divNoticias").innerHTML=xmlHttp.responseText;
			document.getElementById("loading").style.display = "none";
			document.getElementById("divNoticias").style.color = "#000";
		}
	} 
} 

function GetXmlHttpObject(){ 
	var objXMLHttp=null
	if (window.XMLHttpRequest){
		objXMLHttp=new XMLHttpRequest();
	} else if (window.ActiveXObject) {
		objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP");
	}
	return objXMLHttp;
}