function insertPage(url, where) {
        var httpRequest;

        if (window.XMLHttpRequest) { // Mozilla, Safari, ...
            httpRequest = new XMLHttpRequest();
            if (httpRequest.overrideMimeType) {
                httpRequest.overrideMimeType('text/xml');
                // See note below about this line
            }
        } 
        else if (window.ActiveXObject) { // IE
            try {
                httpRequest = new ActiveXObject("Msxml2.XMLHTTP");
                } 
                catch (e) {
                           try {
                                httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
                               } 
                             catch (e) {}
                          }
                                       }

        if (!httpRequest) {
            ansObj = document.getElementById(where);
            ansObj.innerHTML = 'Cannot create an XMLHTTP instance.';
            return false;
        }
        httpRequest.onreadystatechange = function() { putContents(httpRequest, where); };
        httpRequest.open('GET', url, true);
        httpRequest.send('');

    }

    function putContents(httpRequest, where) {
        ansObj = document.getElementById(where);
        if (httpRequest.readyState == 4) {
            if (httpRequest.status == 200) {
                ansObj.innerHTML = httpRequest.responseText;
            } else {
                alert('Application not found.');
            }
        }

    }