function Pagina2(url, target){
	var req;
	if (window.XMLHttpRequest) {
		req = new XMLHttpRequest();
	}
	else 
		if (window.ActiveXObject) {
			req = new ActiveXObject("Microsoft.XMLHTTP");
		}
	
		document.getElementById(target).innerHTML = "<img src='imagenes/loading.gif'>";
		req.onreadystatechange = function(){
			if (req.readyState == 4) {
				if (req.status == 200) {
					document.getElementById(target).innerHTML = req.responseText;
				}
				else {
					document.getElementById(target).innerHTML = "Error de destino";
				}
			}
		}
		 
		req.open("GET", url, true);
		req.send("");
}


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

function stateChanged()
{
    if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
    {
            document.getElementById("txtResult").innerHTML= xmlHttp.responseText;
    }
    else {
            //alert(xmlHttp.status);
    }
}


function htmlData(url, qStr)
{
    if (url.length==0)
    {
        document.getElementById("txtResult").innerHTML=""; 
        return;
    }
    xmlHttp=GetXmlHttpObject()
    if (xmlHttp==null)
    {
        alert ("Browser does not support HTTP Request");
        return;
    }

    url=url+"?"+qStr; 
    url=url+"&sid="+Math.random();
    xmlHttp.onreadystatechange=stateChanged;
    xmlHttp.open("GET",url,true) ;
    xmlHttp.send(null);
}