ÿþ//DECLARE AJAX OBJECT HERE

var ajaxResponse = null;



function AjaxResponse(nextUrl, returnHtml) {

    this.nextUrl = nextUrl;

    this.returnHtml = returnHtml;

}



//END AJAX OBJECT HERE



function getXmlHttpObject(handler) {

    var objXMLHttp = null;

    if (window.XMLHttpRequest) {

        objXMLHttp = new XMLHttpRequest();

    } else if (window.ActiveXObject) {

        objXMLHttp = new ActiveXObject("Microsoft.XMLHTTP");

    }

    return objXMLHttp;

}



var xmlRequest = getXmlHttpObject();

if (xmlRequest == null) {

    alert("Browser does not support HTTP Request");

}



var nextFunctionName = '';

var returnMsg = '';

var execFunctionWhenUrlExist = '';

var execFunctionWhenUrlNotExist = '';



function formPostXmlRequest(callbackType, functionName) {

    var params = 'txtCallbackType=' + callbackType;

    var c = null;



    for (i = 0; i < frmMain.length; i++) {

        c = frmMain[i];

        if (c.id.startsWith('txt')) {

            var txtValue = c.value.trim();

            if (txtValue != '') {

                txtValue = txtValue.replace( /(\r\n|\n|\r)/gm , '\r\n');

            }

            params += '&' + c.id + '=' + postBackEncode(txtValue);

        }



        if (c.id.startsWith('lst')) {

            params += '&' + c.id + '=';

            if (c.options.length > 0 && c.selectedIndex > -1) {

                params += c.options[c.selectedIndex].value;

            }

        }



        if (c.id.startsWith('chk')) {

            params += '&' + c.id + '=' + c.checked;

        }

    }



//    alert(params);

    postXmlRequest(params, functionName);

}



function postXmlRequest(params, functionName) {

    var url = '';

    returnMsg = '';

    if (self.location.href.indexOf('?') > -1) {

        url = self.location.href + '&callback=true';

    } else {

        url = self.location.href + '?callback=true';

    }



    url = url.replace('#?', '?');

    url = url.replace('#&', '&');





    xmlRequest.open("POST", url, true);

    xmlRequest.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");

    xmlRequest.onreadystatechange = asynUpdate;

    nextFunctionName = functionName;

    xmlRequest.setRequestHeader("Referer", url);

    xmlRequest.send(params);



}



function postRemoteXmlRequest(remoteUrl, params, nextFunctionName) {

//    showLoading('
ANG Xì LÝ, XIN CHÜ TRONG GIÂY LÁT...');

    xmlRequest.open("POST", remoteUrl, true);

    xmlRequest.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");

    xmlRequest.setRequestHeader("Referer", remoteUrl);

    xmlRequest.onreadystatechange = nextFunctionName;

    xmlRequest.setRequestHeader("Referer", remoteUrl);

    xmlRequest.send(params);



}



function getRemoteXmlRequest(url, defaultFunction, altFunction) {

    //showLoading('
ANG Xì LÝ, XIN CHÜ TRONG GIÂY LÁT...');

    returnMsg = '';

    xmlRequest.open("GET", url, true);

    xmlRequest.onreadystatechange = getRemoteXmlRequestResult;

    execFunctionWhenUrlExist = defaultFunction;

    execFunctionWhenUrlNotExist = altFunction;

    xmlRequest.setRequestHeader("Referer", url);

    xmlRequest.send(null);

}



function getRemoteXmlRequestResult() {

    if (xmlRequest.readyState == 4) {

        if (xmlRequest.status == 200) {

            eval(execFunctionWhenUrlExist);

        } else {

            eval(execFunctionWhenUrlNotExist);

        }

    }

}



function asynUpdate() {

    if (xmlRequest.readyState == 4 && xmlRequest.status == 200) {

        var responseText = xmlRequest.responseText;

        if (responseText.indexOf('###ERROR###') > -1) {

            showError(responseText);



        } else {



            if (responseText.indexOf('error.aspx?errorID=') > -1) {

                self.location.href = responseText;

            } else if (responseText.split('|').length == 2) {

                var nextUrl = xmlRequest.responseText.split('|')[0].trim();

                var returnHtml = xmlRequest.responseText.split('|')[1].trim();

                ajaxResponse = new AjaxResponse(nextUrl, returnHtml);



                if (nextFunctionName.length > 0) {

                    eval(nextFunctionName);

                }

            } else {

                alert('Invalid response!\n' + xmlRequest.responseText);

            }

        }



        hideLoading();

    }

}



function showError(responseText) {

    var errorArray = responseText.replace('###ERROR###', '').split('###');

    var errorMsg = '';



//    alert(errorArray[0]);

//    alert(errorArray[1]);

//    alert(errorArray[2]);



    switch (errorArray.length) {

    case 3:

        errorMsg = errorArray[1] + '\n-------------------------------------------------------------------------------\n' + errorArray[2];

        errorMsg += '\n\n-------------------------------------------------------------------------------\nError Code: ' + errorArray[0];

        alert(errorMsg);

        break;

    case 4:

        errorMsg = errorArray[1] + '\n-------------------------------------------------------------------------------\n' + errorArray[2];

        errorMsg += '\n\n-------------------------------------------------------------------------------\nError Code: ' + errorArray[0];



        var objID = errorArray[3];



        var obj = document.getElementById(objID);

        if (obj != null && obj.disabled == false) {

            var type = document.getElementById(objID).getAttribute('type');

            if (type == 'text' || type == 'password' || type == 'checkbox' || type == 'select') {

                obj.focus();

            }

        }

        alert(errorMsg);

        break;

    default:

        alert(responseText);

        break;

    }

}