function goto_page(page,box) {
    xmlhttp=GetXmlHttpObject();
    if (xmlhttp==null) {
        alert ("Your browser does not support AJAX!");
        return;
    }
    var url="includes/aj.php";
    url=url+"?page="+page+"&box="+box;
    var divOut="divOut"+box;
    xmlhttp.onreadystatechange=function() {
        if (xmlhttp.readyState==4 || xmlhttp.readyState=="complete") {
            document.getElementById(divOut).innerHTML=xmlhttp.responseText;
        }
    }
    xmlhttp.open("GET",url,true);
    xmlhttp.send(null);
}

function GetXmlHttpObject() {
    var xmlhttp=null;
    try {
        // Firefox, Opera 8.0+, Safari
        xmlhttp=new XMLHttpRequest();
    }
    catch (e) {
        // Internet Explorer
        try {
            xmlhttp=new ActiveXObject("Msxml2.XMLHTTP");
        }
        catch (e) {
            xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
        }
    }
    return xmlhttp;
}