新手请教用ajax，怎么还要刷新
我的页面用了ajax，就是从数据库中读值，可是当进入页面的时候，总是要刷新一下，所有的数据才能显示阿，请各位大虾指点小弟一下谢谢
代码如下：
function castVote(str,id) {
var useid=str;
useid=useid.Trim()
if (useid != "")
{
var url = "prince.asp?flag="+useid;
//alert(url)
if (id==1)
{
var callback = processAjaxResponse;
try{
setTimeout( executeXhr(callback, url),1000);
}
catch(err)
{
executeXhr(callback, url);
}
var recallback=mytype;
var reurl="prince.asp?flag=mytype"
try{
setTimeout(executeXhr(recallback, reurl),3000);
}
catch(err)
{
executeXhr(recallback, reurl);
}
var mycallback=revale;
var myurl="prince.asp?flag=all"
try{
setTimeout(executeXhr(mycallback, myurl),3000);
}
catch(err)
{
executeXhr(mycallback, myurl);
}
var chcallback=logined;
var churl="prince.asp?flag=check"
try
{
setTimeout(executeXhr(chcallback, churl),3000);
}
catch(err)
{
executeXhr(chcallback, churl);
}
}
else
{
var callback = city;
try{
setTimeout(executeXhr(callback, url),3000);
}
catch(err)
{
executeXhr(callback, url);
}
}
}
}
function executeXhr(callback, url) {
if (window.XMLHttpRequest) {
req = new XMLHttpRequest();
req.onreadystatechange = callback;
req.open("GET", url, true);
req.send(null);
}
else if (window.ActiveXObject) {
req = new ActiveXObject("Microsoft.XMLHTTP");
if (req) {
req.onreadystatechange = callback;
req.open("GET", url, true);
req.send();
}
}
}
function processAjaxResponse() {
if (req.readyState == 4) {
if (req.status == 200) {
if (req.responseText!="")
{
var prince=req.responseText;
//prince=prince.Trim();
var arr=new Array();
arr=prince.split("/")
var option;
//alert(prince);
for (var u in arr)
{
document.myform.Provnice.options.add(new Option(arr,arr));
// document.myform.prinvce.options.text=arr
}
}
else
{if (req.responseText=="false")
alert("很遗憾次用户名已经被注册,请用其它的用户名!")
//yanzheng.innerText="用户名不可用!";
//errnum=1
}
//alert("There was a problem retrieving the XML data:" + req.responseText);
}
}
}
function city() {
if (req.readyState == 4) {
if (req.status == 200) {
var prince=req.responseText;
//prince=prince.Trim();
var arr=new Array();
arr=prince.split("/")
var option;
var len=document.myform.city.options.length;
for( i=0; i<len; i++)
{
document.myform.city.options.remove (0)
}
//document.myform.city.options.remove(new Option(arr,arr));
//document.myform.city.options.add(new Option(" "," ");
document.myform.city.options.add(new Option("请选择",""));
for (var u in arr)
{
document.myform.city.options.add(new Option(arr,arr));
// document.myform.prinvce.options.text=arr
}
//alert("There was a problem retrieving the XML data:" + req.responseText);
}
}
}
function logined() {
if (req.readyState == 4) {
if (req.status == 200) {
var prince=req.responseText;
//alert(prince)
if (prince=="false")
{
top.location="login.asp"
}
}
}
}
function revale() {
if (req.readyState == 4) {
if (req.status == 200) {
var prince=req.responseText;
//prince=prince.Trim();
var arr=new Array();
arr=prince.split("/")
//var option;
var len=document.myform.city.options.length;
document.myform.Contact.value = arr[0]
document.myform.NickName.value= arr[1]
if (arr[2]=="男")
{
document.myform.Sex[0].checked=true;
}
else
{
document.myform.Sex[1].checked=true;
}
document.myform.BrithDay.value=arr[3]
document.myform.IDCardNumber.value=arr[4]
var plen=document.myform.Provnice.options.length;
for (var i=0;i<plen;i++)
{
if(document.myform.Provnice.options.value==arr[5])
{
document.myform.Provnice.options.selected=true;
castVote(arr[5],0)
}
}
var clen=document.myform.city.options.length;
for (var s=0;s<clen;s++)
{
// alert(document.myform.city.options[s].value)
if(document.myform.city.options[s].value==arr[6])
{
document.myform.city.options[s].selected=true;
}
}
document.myform.Addr.value=arr[7];
document.myform.PostCode.value=arr[8]
document.myform.Mobile.value=arr[9]
document.myform.Tel.value=arr[10]
document.myform.QQ.value=arr[11]
document.myform.MSN.value=arr[12]
document.myform.EnteName.value=arr[13]
document.myform.LicenseNumber.value=arr[14]
document.myform.Entescale.value=arr[15]
document.myform.EnteContent.value=arr[16]
var elen=document.myform.ClassID.options.length
for(var h=0;h<elen;h++)
{
if(document.myform.ClassID.options[h].value==arr[17])
{
document.myform.city.options[h].selected=true;
}
}
//alert("There was a problem retrieving the XML data:" + req.responseText);
}
}
}
function mytype()
{
if (req.readyState == 4) {
if (req.status == 200) {
var prince=req.responseText;
//prince=prince.Trim();
var arr=new Array();
arr=prince.split("/")
var option;
for (var u in arr)
{
var barr=new Array();
barr=arr.split(",")
//alert(barr[0])
//alert(barr[1])
document.myform.ClassID.options.add(new Option(barr[0],barr[1]));
// document.myform.prinvce.options.text=arr
}
//alert("There was a problem retrieving the XML data:" + req.responseText);
}
}
}
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