一个简单的AJAX问题，主要是在IE下无效，但在FF和CHROME下有效
上代码：
function checkin(strvalue){
var handler=create_ajax();
url="select.php?search="+strvalue;//select.php就是一句代码echo "ok";
handler.open("get",url,true);
handler.onreadystatechange=function(){
if(handler.status==200){//在IE下总说这一行有未指明的错误,不懂什么意思
if(handler.readyState==4){
if(handler.responseText){
var rs=[1,2,3,4,5,6];
var obj=document.getElementsByName("sel");
for(var n=0;n<6;n++){
obj[n].innerHTML=rs[n];
}
}
}
}
}
handler.send(null);
}
function create_ajax(){
var request=null;
try{
request=new XMLHttpRequest();
if(request.overrideMiMeType){
request.overrideMiMeType("text/xml");
}
}catch(e){
try{
request=new ActiveXObject("Msxml2.XMLHTTP");
}catch(e){
request=new ActiveXObject("Microsoft.XMLHTTP");
}
}
return request;
}
function checkin(strvalue) {
var handler = create_ajax();
url = "select.php?search=" + strvalue; //select.php就是一句代码echo "ok";
handler.open("get", url, true);
handler.onreadystatechange = function () {
//if (handler.status == 200) {//在IE下总说这一行有未指明的错误,不懂什么意思，IE获取status要在状态为4之后，要不就报错了
if (handler.readyState == 4) {
if (handler.status == 200) {///放这里来
if (handler.responseText) {
var rs = [1, 2, 3, 4, 5, 6];
var obj = document.getElementsByName("sel");
for (var n = 0; n < 6; n++) {
obj[n].innerHTML = rs[n];
}
}
}
}
//}
}
handler.send(null);
}
function create_ajax() {
var request = null;
try {
request = new XMLHttpRequest();
/*if (request.overrideMiMeType) {
request.overrideMiMeType("text/xml");
}*/
if (request.overrideMimeType) {//用错了方法，没区分大小写
request.overrideMimeType("text/xml");
}
} catch (e) {
try {
request = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
request = new ActiveXObject("Microsoft.XMLHTTP");
}
}
return request;
}
