// AJAX START

    var targetdiv;
    function xmlhttpPost(strURL,target) {
        var xmlHttpReq = false;
        var self = this;
        targetdiv=target;
        // Mozilla/Safari
        if (window.XMLHttpRequest) {
            self.xmlHttpReq = new XMLHttpRequest();
        }
        // IE
        else if (window.ActiveXObject) {
            self.xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
        }
        self.xmlHttpReq.open('POST', strURL, true);
        self.xmlHttpReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
        self.xmlHttpReq.onreadystatechange = function() {
            if (self.xmlHttpReq.readyState == 4) {
                updatepage(self.xmlHttpReq.responseText);
            }
        }
        self.xmlHttpReq.send(getquerystring());
    }

    function getquerystring() {
        var qstr="";
        if (targetdiv == null){
        var form = document.forms['f1'];
        var word = form.word.value;
        var user = form.user.value;
        var session = form.session.value;
        form.word.value = "";
        qstr = 'user='+user+'&session='+session+'&w=' + escape(word);  // NOTE: no '?' before querystring
        }
        return qstr;
    }

    function updatepage(str){
        if (targetdiv != null){
            document.getElementById(targetdiv).innerHTML = str;

        var objDiv = document.getElementById(targetdiv);
        objDiv.scrollTop = objDiv.scrollHeight;


        }
    }



// AJAX END