Need some real basic help plz ^^

[kazu]

Why won't this work? I know its a basic AJAX whatsit... but it refuses to work. Both IE and MF don't report any js errors... but yea...

 

Thanks in advance.

 

Jayden

ps: i suppose some code would help

 

m.php

timerID = setInterval("chatRefresh('m.php')", 10000);

function chatRefresh(url){

if (window.XMLHttpRequest) {
	req = new XMLHttpRequest();
	req.onreadystatechange = function() {ajaxDone();};
	req.open("GET", url, true);
	req.send(null);

// IE/Windows ActiveX version
} else if (window.ActiveXObject) {
	req = new ActiveXObject("Microsoft.XMLDOM");
	if (req) {
		req.onreadystatechange = function() {ajaxDone();};
		req.open("GET", url, true);
		req.send(null);
	}
}

}

function ajaxDone() {
  if (req.readyState == 4) {
    if (req.status == 200 || req.status == 304) {
      // is gonna do nothing
    } else {
      document.innerHTML="AJAX Error. Press Ctrl+R to refresh the page and pray it works =]";
    }
  }
}

[markjoe]

req.onreadystatechange = function() {ajaxDone();};

should be:

req.onreadystatechange = ajaxDone;

 

Does document have an innerHTML property?

 

Here's a quick and dirty that seems to work.

<script type='text/javascript'>
timerID = setInterval("chatRefresh('m.php')", 2000);

function ajaxDone() {
  if (req.readyState == 4 && req.responseText) {
document.getElementById('TA').innerHTML=req.responseText;
  }
}

function chatRefresh(url){
var RN=Math.round(Math.random()*1000);

if (window.XMLHttpRequest) {
	req = new XMLHttpRequest();
	req.onreadystatechange = ajaxDone;
	req.open("GET", url+'?rn='+RN);
	req.send(null);

// IE/Windows ActiveX version
} else if (window.ActiveXObject) {
	req = new ActiveXObject("Microsoft.XMLDOM");
	if (req) {
		req.onreadystatechange = ajaxDone;
		req.open("GET", url);
		req.send(null);
	}
}
}


</script>
<textarea id='TA'></textarea>

 

I didn't really bother with the IE part, testing on Firefox.

 

This is not at all how I would do this, but it works and is closest to your original code.

 

Oh, yea... that random number thing is the best way I've seen to prevent caching.