def ajax_dlink(idname, url, on_load_fn):
    global running_timeout, timeout_idname, timeout_url, timeout_on_load_fn, redo_timeout, timeout_id
    from __pyjamas__ import doc
    body = doc().body

    from __javascript__ import clearTimeout
    if timeout_id:
        clearTimeout(timeout_id) # really important - get into a mess otherwise

    def onreadystatechange():
        if xhtoj.readyState == 4:
            jsnode = 0
            if xhtoj.status == 200:
                txt = xhtoj.responseText

                jsnode = None

                if idname:
                    jsnode = DOM.getElementById(idname)

                if jsnode is None:
                    jsnode = DOM.createElement('script')

                #tst = DOM.createElement('html')
                #tst.innerHTML = str

                activate_javascript(txt)
                if not on_load_fn is None:
                    wnd().alert(on_load_fn)
                    # eval(on_load_fn)
                    test_fn()

                return 1
            else:
                jsnode = DOM.getElementById(idname)

                if not jsnode is None:
                    jsnode.innerHTML = xhtoj.status

    xhtoj = createHttpRequest()
    xhtoj.onreadystatechange = onreadystatechange
    xhtoj.open("GET", url , True )
    xhtoj.send("")

    return 0
dataset/ETHPy150Open anandology/pyjamas/library/dynamic.py/ajax_dlink/original