/**

* 获取XmlHttpRequest对象

*/

function getXMLHttpRequest(){

var xmlHttpReq;

try{ // Firefox, Opera 8.0+, Safari

xmlHttpReq=new XMLHttpRequest();

}

catch (e){

try{// Internet Explorer

xmlHttpReq=new ActiveXObject("Msxml2.XMLHTTP");

}

catch (e){

try{

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

}

catch (e){}

}

}


return xmlHttpReq;

}

/**

* 获取XmlHttpRequest对象

*/

function getXMLHttpRequest(){

var xmlHttpReq=null;

if (window.ActiveXObject) {//IE浏览器创建XMLHttpRequest对象

xmlHttpReq = new ActiveXObject("MSXML2.XMLHTTP.3.0");

}else if(window.XMLHttpRequest){

xmlHttpReq = new XMLHttpRequest();

}

return xmlHttpReq;

}



/**

* 获取XmlHttpRequest对象

*/

function getXMLHttpRequest() {

var xmlHttpReq=null;

if (window.XMLHttpRequest) {//Mozilla 浏览器

xmlHttpReq = new XMLHttpRequest();

}else {

if (window.ActiveXObject) {//IE 浏览器

try {

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

}

catch (e) {

try {//IE 浏览器

xmlHttpReq = new ActiveXObject("Msxml2.XMLHTTP");

}

catch (e) {

}

}

}

}

return xmlHttpReq;

}