//
function DAX() 
{
    this.req = null;
    this.url = null;
    this.method = 'GET';
    this.async = true;
    this.status = null;
    this.statusText = '';
    this.postData = null;
    this.readyState = null;
    this.responseText = null;
    this.responseXML = null;
    this.handleResp = null;
    this.responseFormat = 'text', // 'text', 'xml', or 'object'
    this.mimeType = null;

    this.init = function() 
    {
        if (!this.req) 
        {
            try {
                // Try to create object for Firefox, Safari, IE7, etc.
                this.req = new XMLHttpRequest();
            }
            catch (e) 
            {
                try {
                    // Try to create object for later versions of IE.
                    this.req = new ActiveXObject('MSXML2.XMLHTTP');
                }
                catch (e) {
                    try {
                        // Try to create object for early versions of IE.
                        this.req = new ActiveXObject('Microsoft.XMLHTTP');
                    }
                    catch (e) {
                        // Could not create an XMLHttpRequest object.
                        return false;
                    }
                }
            }
        }
        return this.req;
    };

    this.doReq = function() 
    {
        if (!this.init()) 
        {
            alert('Could not create XMLHttpRequest object.');
            return;
        }
        this.req.open(this.method, this.url, this.async);
        if (this.mimeType) 
        {
            try {
                req.overrideMimeType(this.mimeType);
            }
            catch (e) {
                // couldn't override MIME type -- IE6 or Opera?
            }
        }
        var self = this; // Fix loss-of-scope in inner function
        this.req.onreadystatechange = function() 
        {
            var resp = null;
            if (self.req.readyState == 4) {
                switch (self.responseFormat) 
                {
                    case 'text':
                        resp = self.req.responseText;
                        break;
                    case 'xml':
                        resp = self.req.responseXML;
                        break;
                    case 'object':
                        resp = req;
                        break;
                }
                if (self.req.status >= 200 && self.req.status <= 299) 
                {
                    self.handleResp(resp);
                }
                else 
                {
                    self.handleErr(resp);
                }
            }
        };
        this.req.send(this.postData);
    };
    
    this.setMimeType = function(mimeType) 
    {
        this.mimeType = mimeType;
    };

    this.handleErr = function() 
    {
        alert('An error occurred' + '\n'
              + 'Status Code: ' + this.req.status + '\n'
              + 'Status Description: ' + this.req.statusText);
    };

    this.abort = function() 
    {
        if (this.req) 
        {
            this.req.onreadystatechange = function() { };
            this.req.abort();
            this.req = null;
        }
    };

    this.doGet = function(url, hand, format) 
    {
        this.url = url;
        this.handleResp = hand;
        this.responseFormat = format || 'text';
        this.doReq();
    };
}

// 
function DAXEval(str)
{
    //var re = /<script.*?>([\s\S]*?)<\//igm;
    var re = /<script.*?>([\s\S]*?)<\/.*?>/igm;
    var match;
    while (match = re.exec(str))
    {
        if (window.execScript)
        {
            window.execScript(match[1]);
        } 
        else
        {
            eval(match[1]);
        }
    }
}

// 
function DAXStripCode(str)
{
    var re = /<script.*?>([\s\S]*?)<\/.*?>/igm;
    return str.replace(re,'');
}

function DAXPrintResult(div,str)
{
    var pollDiv = document.getElementById(div);
    /*if (pollDiv.firstChild) 
    {
        pollDiv.removeChild(pollDiv.firstChild);
    }
    pollDiv.appendChild( document.createTextNode( DAXStripCode(str) ) );*/
    pollDiv.innerHTML = DAXStripCode(str);
}