With the help from that link and some other document, I have got this simple first ajax page, I think it will popup the contains of the file test.txt in the same directory of the page, but it give these value: status: 0
statusText : "" .
Is it true that I must have a web server running to make ajax function or anything else?
Please show me the way.
The code is here:
Code:
<script type="text/javascript">
var http_request = false;
function makeRequest(url) {
http_request = false;
if (window.XMLHttpRequest) { // Mozilla, Safari,...
http_request = new XMLHttpRequest();
if (http_request.overrideMimeType) {
http_request.overrideMimeType('text/xml');
}
} else if (window.ActiveXObject) { // IE
try {
http_request = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try {
http_request = new ActiveXObject("Microsoft.XMLHTTP");
} catch (e) {}
}
}
if (!http_request) {
alert('Giving up :( Cannot create an XMLHTTP instance');
return false;
}
http_request.onreadystatechange = alertContents;
http_request.open('GET', url, true);
http_request.send(null);
}
function alertContents() {
switch (http_request.readyState){
case 0 : alert( 'uninitlaized'); break;
case 1 : alert( 'loading'); break;
case 2 : alert( 'loaded'); break;
case 3 : alert( 'interractive'); break;
case 4 :if (http_request.status == 200) {
alert(http_request.responseText);
} else {
alert('There was a problem with the request.');
alert (http_request.status);
alert (http_request.statusText);
};
}
}
</script>
The make_request function is called when I click on the an pan tag.
