Objekt initiering
var HRObj=false;
if (window.XMLHttpRequest)
HRObj = new XMLHttpRequest();
else if (window.ActiveXObject)
HRObj = new ActiveXObject("Microsoft.XMLHTTP");
else
alert("Inget objekt");
Object methods och properties
IE : Internet Explorer
FF : Mozilla, Firefox, Netscape Navigator
AS : Apple Safari
| Object Properties | R/W | IE | FF | AS |
|---|---|---|---|---|
| onreadystatechange | R/W | X | X | |
| readyState | R | X | X | X |
| responseBody | R | X | ||
| responseStream | R | X | ||
| responseText | R | X | X | X |
| responseXML | R | X | X | X |
| status | R | X | X | X |
| statusText | R | X | X | X |
| channel | R | X |
| Object Methods | IE | FF | AS |
|---|---|---|---|
| abort | X | X | X |
| getAllResponseHeaders | X | X | X |
| getResponseHeader | X | X | X |
| open | X | X | |
| send | X | X | |
| setRequestHeader | X | X | |
| openRequest | X | ||
| overrideMimeType | X |
Readystate värden
| 0 | Uninitialized |
| 1 | Loading |
| 2 | Loaded |
| 3 | Interactive |
| 4 | Complete |
Status värden
| 200 | OK |
| 201 | Created |
| 204 | No content |
| 205 | Reset content |
| 206 | Partial content |
| 400 | Bad request |
| 401 | Unauthorized |
| 403 | Forbidden |
| 404 | Not found |
| 405 | Method not allowed |
| 406 | Not acceptable |
| 407 | Proxy Authentication required |
| 408 | Request timeout |
| 411 | Length required |
| 413 | Requested entity too large |
| 414 | Requested URL too long |
| 415 | Unsupported media Type |
| 500 | Internal server error |
| 501 | Not implemented |
| 502 | Bad Gateway |
| 503 | Service unavailable |
| 504 | Gateway Timeout |
| 505 | HTTP Version not supporded |
Object methods och properties
Open("method", "URL" [, asyncFlag [, "username" [, "password"]]]
method : GET, POST, PUT, HEAD, PROPFIND
asyncFlag : true/false default true
SCRIPT
if (HRObj) {
HRObj.open("GET", "test1.asp");
HRObj.onreadystatechange = function() {
if (HRObj.readyState==4 && HRObj.status==200) {
if (nFunc=="getText")
txt = HRObj.responseText;
else if (nFunc== "getXML")
xml = HRObj.responseXML;
}
}
HRObj.send(null);
}
Övrigt
Köra javascript från server : eval(HRObj.responseText)
frågesträng : name=value. & separerar, + ersätter mellanslag. två siffror för ascii kod ersätter å,ä,ö t.ex.
För att tolka responseXML krävs header("Content-type:text/xml") när data skickas.
HRObj.open("HEAD", datasource);
var sAll = HRObj.getAllResponseHeaders();
# eller
var date = new Date(HRObj.getResponseHeader("Last-Modified"));
if (status==200) then bExist=true;
else if (status==404) bExist=false;
Firefox debugger script
Tools-Manage user scripts