var domWrite = (function() {            // by Frank Thuerigen
    // private 

    var dw = document.write,              // save document.write()
          myCalls = [],                // contains all outstanding Scripts
          t = '';                      // timeout

    function startnext() {                 // start next call in pipeline
        if (myCalls.length > 0) {
            if (Object.watch) console.log('next is ' + myCalls[0].f.toString());
            myCalls[0].startCall();
        }
    }

    function evals(pCall) {            // eval embedded script tags in HTML code
        var scripts = [],
      script,
      regexp = /<script[^>]*>([\s\S]*?)<\/script>/gi;
        while ((script = regexp.exec(pCall.buf))) scripts.push(script[1]);
        scripts = scripts.join('\n');
        if (scripts) {
            eval(scripts);
        }
    }

    function finishCall(pCall) {
        pCall.e.innerHTML = pCall.buf;             // write output to element
        evals(pCall);
        document.write = dw;                        // restore document.write()
        myCalls.shift();
        window.setTimeout(startnext, 50);
    }

    function testDone(pCall) {
        var myCall = pCall;
        return function() {
            if (myCall.buf !== myCall.oldbuf) {
                myCall.oldbuf = myCall.buf;
                t = window.setTimeout(testDone(myCall), myCall.ms);
            }
            else {
                finishCall(myCall);
            }
        }
    }

    function MyCall(pDiv, pSrc, pFunc) {                    // Class
        this.e = (typeof pDiv == 'string' ?
             document.getElementById(pDiv) :
             pDiv),                     // the div element
  this.f = pFunc || function() { },
  this.stat = 0,                         // 0=idle, 1=waiting, 2=running, 3=finished
  this.src = pSrc,                       // script source address
  this.buf = '',                         // output string buffer
  this.oldbuf = '',                      // compare buffer
  this.ms = 100,                         // milliseconds
  this.scripttag;                        // the script tag 
    }

    MyCall.prototype = {
        startCall: function() {
            this.f.apply(window);                 // execute settings function
            this.stat = 1;
            var that = this;                            // status = waiting
            document.write = (function() {
                var o = that,
        cb = testDone(o),
        t;
                return function(pString) {            // overload document.write()
                    window.clearTimeout(t);
                    o.stat = 2;                             // status = running
                    window.clearTimeout(t);
                    o.oldbuf = o.buf;
                    o.buf += pString;                     // add string to buffer
                    t = window.setTimeout(cb, o.ms);
                };
            })();
            var s = document.createElement('script');
            s.setAttribute('language', 'javascript');
            s.setAttribute('type', 'text/javascript');
            s.setAttribute('src', this.src);
            document.getElementsByTagName('head')[0].appendChild(s);
        }
    }

    return function(pDiv, pSrc, pFunc) {  // public
        var c = new MyCall(pDiv, pSrc, pFunc);
        myCalls.push(c);
        if (myCalls.length === 1) {
            startnext();
        }
    }
})()

/*

    window.onload = function() {
        panels[0] = new MyTabObject(false, "<%=Panel1.ClientID%>",
            "http://www.govtrack.us/embed/events.xpd?monitors=misc:introducedbills&options=&count=15", "TabMovie1");
        panels[1] = new MyTabObject(false, "<%=Panel2.ClientID%>",
        "http://www.govtrack.us/embed/events.xpd?monitors=misc:allcommittee&options=&count=15", "");
        panels[2] = new MyTabObject(false, "<%=Panel3.ClientID%>",
        "http://www.govtrack.us/embed/events.xpd?monitors=misc:allvotes&options=&count=15", "TabMovie3");
        panels[3] = new MyTabObject(false, "<%=Panel4.ClientID%>", "" , "");
    }
    
    function clientActiveTabChanged(sender, args) {
        var index = sender.get_activeTabIndex();
        //alert(document.getElementById(panels[index].panel).innerHTML);
        var movie = window.document.Object2;
        //alert(movie.IsPlaying() + " : " + movie.PercentLoaded());


        if (panels[index].isloaded == false) {
            panels[index].isloaded = true;
            //alert(panels[index].MovieLoaded())
            switch (index) {
                case 0:
                    break;
                case 1:
                    if (panels[index].MovieLoaded() == false) {
                        domWrite(panels[index].panel, panels[index].script);
                    }
                    break;
                case 2:
                    break;
                case 3:
                    if (panels[index].script != "") {
                        alert("loading");
                        if (panels[index].MovieLoaded() == false) {
                            domWrite(panels[index].panel, panels[index].script);
                        }
                    }
                    break;
            }

        }

    } 
*/