兼容IE于FF的ajax回调函数写法
var ajaxObj;var btype=getOs();function getOs(){ if(navigator.userAgent.indexOf("MSIE")>0) { return "MSIE"; //IE浏览器 } if(isFirefox=navigator.userAgent.indexOf("Firefox")>0){ return "Firefox"; //Firefox浏览器 } if(isSafari=navigator.userAgent.indexOf("Safari")>0) { return "Safari"; //Safan浏览器 } if(isCamino=navigator.userAgent.indexOf("Camino")>0){ return "Camino"; //Camino浏览器 } if(isMozilla=navigator.userAgent.indexOf("Gecko/")>0){ return "Gecko"; //Gecko浏览器 }} function get_request(){ http_request = "";//开始初始化XMLHttpRequest 对象if(window.XMLHttpRequest) { //Mozilla 浏览器 http_request = new XMLHttpRequest(); if (http_request.overrideMimeType) {//设置MiME 类别 http_request.overrideMimeType("text/xml"); }}else if (window.ActiveXObject) { // IE 浏览器 try { http_request = new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) { try { http_request = new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) {} }}if (!http_request) { // 异常，创建对象实例失败 window.alert("不能创建XMLHttpRequest 对象实例."); return false;}return http_request;}function bank(){var userId = document.getElementById("userId").value;var money = document.getElementById("money").value;var time = document.getElementById("time").value;// 交由XMLHttpRequest和后台进行异步通信ajaxObj=get_request();var url="bankSend.do?userId="+userId+"&money="+money+"&time="+time;ajaxObj.open("Get",url,true);if(btype=="Firefox"){ajaxObj.onreadystatechange = function(){bankCallBack(); }; ajaxObj.send(null); ajaxObj.onreadystatechange = function(){bankCallBack(); };}else{ajaxObj.onreadystatechange = bankCallBackajaxObj.send(null);}}// bankCallBack的回调函数function bankCallBack(){if((ajaxObj.readyState==4 || btype=="Firefox")){if(ajaxObj.status==200){var status=ajaxObj.responseXML.getElementsByTagName("status").firstChild.data;if(status=="ok"){// 返回正确信息var text=ajaxObj.responseXML.getElementsByTagName("text").firstChild.data;document.sendForm.submit();var parent=document.getElementById("linkTest");//parent.setAttribute("onclick", "#");}else{// 返回错误信息var text=ajaxObj.responseXML.getElementsByTagName("text").firstChild.data;}}}}
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