Synchronous request in Firefox not working

[duncansinclair]

The following code works in IE, but in Forefox (1.0.7 & 1.5) the
Asyncronous function (testA) works fine but the Synchronous one (testS)
does not. It just doesn't work & I get no errors.

Anybody have an idea why?

<script>
function testA () {
var element = document.getEle mentById('show1 ');
if (window.XMLHttp Request) {
req = new XMLHttpRequest( );
} else if (window.ActiveX Object) {
req = new ActiveXObject(" Microsoft.XMLHT TP");
}
req.onreadystat echange = function() {
if (req.readyState == 4 && req.status == 200) {
element.innerHT ML = req.responseTex t;
}
}
req.open("POST" , 'response.php', true);
req.setRequestH eader("Content-type",
"applicatio n/x-www-form-urlencoded");
req.send(null)
}
function testS () {
var element = document.getEle mentById('show2 ');
if (window.XMLHttp Request) {
req = new XMLHttpRequest( );
} else if (window.ActiveX Object) {
req = new ActiveXObject(" Microsoft.XMLHT TP");
}
req.onreadystat echange = function() {
if (req.readyState == 4 && req.status == 200) {
element.innerHT ML = req.responseTex t;
}
}
req.open("POST" , 'response.php', false);
req.setRequestH eader("Content-type",
"applicatio n/x-www-form-urlencoded");
req.send(null)
}
</script>
<span id="show1">sho w 1</span><br>
<span id="show2">sho w 2</span><br><br>
<input type="button" value="Test Async" onClick="testA( );">
<input type="button" value="Test Sync" onClick="testS( );">

[Martin Honnen]

du************@ gmail.com wrote:

The following code works in IE, but in Forefox (1.0.7 & 1.5) the
Asyncronous function (testA) works fine but the Synchronous one (testS)
does not. It just doesn't work & I get no errors.

Anybody have an idea why? function testS () {
var element = document.getEle mentById('show2 ');
if (window.XMLHttp Request) {
req = new XMLHttpRequest( );
} else if (window.ActiveX Object) {
req = new ActiveXObject(" Microsoft.XMLHT TP");
}
req.onreadystat echange = function() {
if (req.readyState == 4 && req.status == 200) {
element.innerHT ML = req.responseTex t;
}
}
req.open("POST" , 'response.php', false);
req.setRequestH eader("Content-type",
"applicatio n/x-www-form-urlencoded");
req.send(null)

Don't use onreadystatecha nge if you want to do synchronous stuff, put
the code to deal with the response after the send call, that synchronous
call is blocking until the response comes and your statements after the
send call are executed and can deal with status, responseText etc.
At least that should solve the problem I think.

--

Martin Honnen
http://JavaScript.FAQTs.com/

[duncansinclair]

Works like a charm.

Thanks Martin