Ok, I'm trying to create an AJAX chat system that polls the chat database every 400 ms. This part works, part of which is not an active list of users. When I try to combine the two requests, the first two requests are made, then all snowballs and the normally requested (12 seconds) active user request begin to be updated every 1 ms, and the first request will NEVER be repeated. All AJAX code is displayed for both requests:
var waittime=400;chatmsg=document.getElementById("chatmsg");
room = document.getElementById("roomid").value;
chatmsg.focus()
document.getElementById("chatwindow").innerHTML = "loading...";
document.getElementById("userwindow").innerHTML = "Loading User List...";
var xmlhttp = false;
var xmlhttp2 = false;
var xmlhttp3 = false;
function ajax_read(url) {
if(window.XMLHttpRequest){
xmlhttp=new XMLHttpRequest();
if(xmlhttp.overrideMimeType){
xmlhttp.overrideMimeType('text/xml');
}
} else if(window.ActiveXObject){
try{
xmlhttp=new ActiveXObject("Msxml2.XMLHTTP");
} catch(e) {
try{
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
} catch(e){
}
}
}
if(!xmlhttp) {
alert('Giving up :( Cannot create an XMLHTTP instance');
return false;
}
xmlhttp.onreadystatechange = function() {
if (xmlhttp.readyState==4) {
document.getElementById("chatwindow").innerHTML = xmlhttp.responseText;
setTimeout("ajax_read('methods.php?method=r&room=" + room +"')", waittime);
}
}
xmlhttp.open('GET',url,true);
xmlhttp.send(null);
}
function user_read(url) {
if(window.XMLHttpRequest){
xmlhttp3=new XMLHttpRequest();
if(xmlhttp3.overrideMimeType){
xmlhttp3.overrideMimeType('text/xml');
}
} else if(window.ActiveXObject){
try{
xmlhttp3=new ActiveXObject("Msxml2.XMLHTTP");
} catch(e) {
try{
xmlhttp3=new ActiveXObject("Microsoft.XMLHTTP");
} catch(e){
}
}
}
if(!xmlhttp3) {
alert('Giving up :( Cannot create an XMLHTTP instance');
return false;
}
xmlhttp3.onreadystatechange = function() {
if (xmlhttp3.readyState==4) {
document.getElementById("userwindow").innerHTML = xmlhttp3.responseText;
setTimeout("ajax_read('methods.php?method=u&room=" + room +"')", 12000);
}
}
xmlhttp3.open('GET',url,true);
xmlhttp3.send(null);
}
function ajax_write(url){
if(window.XMLHttpRequest){
xmlhttp2=new XMLHttpRequest();
if(xmlhttp2.overrideMimeType){
xmlhttp2.overrideMimeType('text/xml');
}
} else if(window.ActiveXObject){
try{
xmlhttp2=new ActiveXObject("Msxml2.XMLHTTP");
} catch(e) {
try{
xmlhttp2=new ActiveXObject("Microsoft.XMLHTTP");
} catch(e){
}
}
}
if(!xmlhttp2) {
alert('Giving up :( Cannot create an XMLHTTP instance');
return false;
}
xmlhttp2.open('GET',url,true);
xmlhttp2.send(null);
}
function submit_msg(){
nick = document.getElementById("chatnick").value;
msg = document.getElementById("chatmsg").value;
document.getElementById("chatmsg").value = "";
ajax_write("methods.php?method=w&m=" + msg + "&n=" + nick + "&room=" + room + "");
}
function keyup(arg1) {
if (arg1 == 13) submit_msg();
}
var intUpdate = setTimeout("ajax_read('methods.php')", waittime);
var intUpdate = setTimeout("user_read('methods.php')", waittime);
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