var XMLHttpRequestObject = false;

        if (window.XMLHttpRequest)
        {
                XMLHttpRequestObject = new XMLHttpRequest();
        }
        else if (window.ActiveXObject)
        {
                XMLHttpRequestObject = new ActiveXObject("Microsoft.XMLHTTP");
        }

        function getData(dataSource, tdiv)
        {
                if(XMLHttpRequestObject)
                {
                        XMLHttpRequestObject.open("GET", dataSource);

                        XMLHttpRequestObject.onreadystatechange = function()
                        {
                                if (XMLHttpRequestObject.readyState == 4 &&
                                        XMLHttpRequestObject.status == 200)
                                {
                                        var targetDiv = document.getElementById(tdiv);

                                        targetDiv.innerHTML = XMLHttpRequestObject.responseText;

                                }
                        }

                        XMLHttpRequestObject.send(null);
                }
        }        
                function a(url, tdiv)
                {
                        var retval = getData(url, tdiv);

                }