48 lines
1.3 KiB
JavaScript
48 lines
1.3 KiB
JavaScript
|
|
||
|
|
var port = location.href.substring( location.href.substring(7).indexOf(':')+8,
|
||
|
|
location.href.substring(7).indexOf('/')+7);
|
||
|
|
|
||
|
|
// Returns an ajax object
|
||
|
|
function ajaxConnect() {
|
||
|
|
var http = null;
|
||
|
|
if(window.XMLHttpRequest)
|
||
|
|
http = new XMLHttpRequest();
|
||
|
|
else if (window.ActiveXObject)
|
||
|
|
http = new ActiveXObject("Microsoft.XMLHTTP");
|
||
|
|
return http;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* returns a function that can be passed to http.send
|
||
|
|
* that runs code fn on successful response
|
||
|
|
* http: ajac object
|
||
|
|
* fn: function taking one argument, the response string
|
||
|
|
* run if successful connection
|
||
|
|
* err: OPTIONAL argument that contains a funtion
|
||
|
|
* to be run if the connection failed
|
||
|
|
*/
|
||
|
|
function returnfn(http, fn, err) {
|
||
|
|
if (!fn)
|
||
|
|
fn = function(resp) {};
|
||
|
|
if (!err)
|
||
|
|
err = function() {};
|
||
|
|
return function() {
|
||
|
|
if (http.readyState == 4) {
|
||
|
|
if (http.responseText == '')
|
||
|
|
err();
|
||
|
|
else
|
||
|
|
fn(http.responseText);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
// Does ajax magic. Makes ajax call with data and sets up
|
||
|
|
// retfn to be called on response
|
||
|
|
function ajaxSend(http, data, retfn, forward) {
|
||
|
|
if (!forward)
|
||
|
|
forward = '';
|
||
|
|
http.onreadystatechange = retfn;
|
||
|
|
http.open('POST', "http://localhost:"+port+"/"+ forward, true);
|
||
|
|
http.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
|
||
|
|
http.send(data);
|
||
|
|
}
|