comparison core.js @ 1604:d5d7dfdbf335

Hacky test wait indicator!!
author Nicholas Jillings <nickjillings@users.noreply.github.com>
date Thu, 28 May 2015 18:58:45 +0100
parents
children dea30ed2b549
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-1:000000000000 1604:d5d7dfdbf335
1 /**
2 * core.js
3 *
4 * Main script to run, calls all other core functions and manages loading/store to backend.
5 * Also contains all global variables.
6 */
7
8 /* create the web audio API context and store in audioContext*/
9 var audioContext; // Hold the browser web audio API
10 var projectXML; // Hold the parsed setup XML
11 var popup; // Hold the interfacePopup object
12 var testState;
13 var currentState; // Keep track of the current state (pre/post test, which test, final test? first test?)
14 //var testXMLSetups = []; // Hold the parsed test instances
15 //var testResultsHolders =[]; // Hold the results from each test for publishing to XML
16 var currentTrackOrder = []; // Hold the current XML tracks in their (randomised) order
17 //var currentTestHolder; // Hold any intermediate results during test - metrics
18 var audioEngineContext; // The custome AudioEngine object
19 var projectReturn; // Hold the URL for the return
20 //var preTestQuestions = document.createElement('PreTest'); // Store any pre-test question response
21 //var postTestQuestions = document.createElement('PostTest'); // Store any post-test question response
22
23 // Add a prototype to the bufferSourceNode to reference to the audioObject holding it
24 AudioBufferSourceNode.prototype.owner = undefined;
25
26 window.onload = function() {
27 // Function called once the browser has loaded all files.
28 // This should perform any initial commands such as structure / loading documents
29
30 // Create a web audio API context
31 // Fixed for cross-browser support
32 var AudioContext = window.AudioContext || window.webkitAudioContext;
33 audioContext = new AudioContext;
34
35 // Create test state
36 testState = new stateMachine();
37
38 // Create the audio engine object
39 audioEngineContext = new AudioEngine();
40
41 // Create the popup interface object
42 popup = new interfacePopup();
43 };
44
45 function interfacePopup() {
46 // Creates an object to manage the popup
47 this.popup = null;
48 this.popupContent = null;
49 this.popupButton = null;
50 this.popupOptions = null;
51 this.currentIndex = null;
52 this.responses = null;
53 this.createPopup = function(){
54 // Create popup window interface
55 var insertPoint = document.getElementById("topLevelBody");
56 var blank = document.createElement('div');
57 blank.className = 'testHalt';
58
59 this.popup = document.createElement('div');
60 this.popup.id = 'popupHolder';
61 this.popup.className = 'popupHolder';
62 this.popup.style.position = 'absolute';
63 this.popup.style.left = (window.innerWidth/2)-250 + 'px';
64 this.popup.style.top = (window.innerHeight/2)-125 + 'px';
65
66 this.popupContent = document.createElement('div');
67 this.popupContent.id = 'popupContent';
68 this.popupContent.style.marginTop = '25px';
69 this.popupContent.align = 'center';
70 this.popup.appendChild(this.popupContent);
71
72 this.popupButton = document.createElement('button');
73 this.popupButton.className = 'popupButton';
74 this.popupButton.innerHTML = 'Next';
75 this.popupButton.onclick = function(){popup.buttonClicked();};
76 insertPoint.appendChild(this.popup);
77 insertPoint.appendChild(blank);
78 };
79
80 this.showPopup = function(){
81 if (this.popup == null || this.popup == undefined) {
82 this.createPopup();
83 }
84 this.popup.style.zIndex = 3;
85 this.popup.style.visibility = 'visible';
86 var blank = document.getElementsByClassName('testHalt')[0];
87 blank.style.zIndex = 2;
88 blank.style.visibility = 'visible';
89 };
90
91 this.hidePopup = function(){
92 this.popup.style.zIndex = -1;
93 this.popup.style.visibility = 'hidden';
94 var blank = document.getElementsByClassName('testHalt')[0];
95 blank.style.zIndex = -2;
96 blank.style.visibility = 'hidden';
97 };
98
99 this.postNode = function() {
100 // This will take the node from the popupOptions and display it
101 var node = this.popupOptions[this.currentIndex];
102 this.popupContent.innerHTML = null;
103 if (node.nodeName == 'statement') {
104 var span = document.createElement('span');
105 span.textContent = node.textContent;
106 this.popupContent.appendChild(span);
107 } else if (node.nodeName == 'question') {
108 var span = document.createElement('span');
109 span.textContent = node.textContent;
110 var textArea = document.createElement('textarea');
111 var br = document.createElement('br');
112 this.popupContent.appendChild(span);
113 this.popupContent.appendChild(br);
114 this.popupContent.appendChild(textArea);
115 }
116 this.popupContent.appendChild(this.popupButton);
117 }
118
119 this.initState = function(node) {
120 //Call this with your preTest and postTest nodes when needed to
121 // initialise the popup procedure.
122 this.popupOptions = $(node).children();
123 if (this.popupOptions.length > 0) {
124 if (node.nodeName == 'preTest' || node.nodeName == 'PreTest') {
125 this.responses = document.createElement('PreTest');
126 } else if (node.nodeName == 'postTest' || node.nodeName == 'PostTest') {
127 this.responses = document.createElement('PostTest');
128 } else {
129 console.log ('WARNING - popup node neither pre or post!');
130 this.responses = document.createElement('responses');
131 }
132 this.currentIndex = 0;
133 this.showPopup();
134 this.postNode();
135 }
136 }
137
138 this.buttonClicked = function() {
139 // Each time the popup button is clicked!
140 var node = this.popupOptions[this.currentIndex];
141 if (node.nodeName == 'question') {
142 // Must extract the question data
143 var mandatory = node.attributes['mandatory'];
144 if (mandatory == undefined) {
145 mandatory = false;
146 } else {
147 if (mandatory.value == 'true'){mandatory = true;}
148 else {mandatory = false;}
149 }
150 var textArea = $(popup.popupContent).find('textarea')[0];
151 if (mandatory == true && textArea.value.length == 0) {
152 alert('This question is mandatory');
153 return;
154 } else {
155 // Save the text content
156 var hold = document.createElement('comment');
157 hold.id = node.attributes['id'].value;
158 hold.innerHTML = textArea.value;
159 console.log("Question: "+ node.textContent);
160 console.log("Question Response: "+ textArea.value);
161 this.responses.appendChild(hold);
162 }
163 }
164 this.currentIndex++;
165 if (this.currentIndex < this.popupOptions.length) {
166 this.postNode();
167 } else {
168 // Reached the end of the popupOptions
169 this.hidePopup();
170 if (this.responses.nodeName == testState.stateResults[testState.stateIndex].nodeName) {
171 testState.stateResults[testState.stateIndex] = this.responses;
172 } else {
173 testState.stateResults[testState.stateIndex].appendChild(this.responses);
174 }
175 advanceState();
176 }
177 }
178 }
179
180 function advanceState()
181 {
182 // Just for complete clarity
183 testState.advanceState();
184 }
185
186 function stateMachine()
187 {
188 // Object prototype for tracking and managing the test state
189 this.stateMap = [];
190 this.stateIndex = null;
191 this.currentStateMap = [];
192 this.currentIndex = null;
193 this.currentTestId = 0;
194 this.stateResults = [];
195 this.timerCallBackHolders = null;
196 this.initialise = function(){
197 if (this.stateMap.length > 0) {
198 if(this.stateIndex != null) {
199 console.log('NOTE - State already initialise');
200 }
201 this.stateIndex = -1;
202 var that = this;
203 for (var id=0; id<this.stateMap.length; id++){
204 var name = this.stateMap[id].nodeName;
205 var obj = document.createElement(name);
206 this.stateResults.push(obj);
207 }
208 } else {
209 conolse.log('FATAL - StateMap not correctly constructed. EMPTY_STATE_MAP');
210 }
211 };
212 this.advanceState = function(){
213 if (this.stateIndex == null) {
214 this.initialise();
215 }
216 if (this.stateIndex == -1) {
217 console.log('Starting test...');
218 }
219 if (this.currentIndex == null){
220 if (this.currentStateMap.nodeName == "audioHolder") {
221 // Save current page
222 this.testPageCompleted(this.stateResults[this.stateIndex],this.currentStateMap,this.currentTestId);
223 this.currentTestId++;
224 }
225 this.stateIndex++;
226 if (this.stateIndex >= this.stateMap.length) {
227 console.log('Test Completed');
228 createProjectSave(projectReturn);
229 } else {
230 this.currentStateMap = this.stateMap[this.stateIndex];
231 if (this.currentStateMap.nodeName == "audioHolder") {
232 console.log('Loading test page');
233 loadTest(this.currentStateMap);
234 this.initialiseInnerState(this.currentStateMap);
235 } else if (this.currentStateMap.nodeName == "PreTest" || this.currentStateMap.nodeName == "PostTest") {
236 if (this.currentStateMap.childElementCount >= 1) {
237 popup.initState(this.currentStateMap);
238 } else {
239 this.advanceState();
240 }
241 } else {
242 this.advanceState();
243 }
244 }
245 } else {
246 this.advanceInnerState();
247 }
248 };
249
250 this.testPageCompleted = function(store, testXML, testId) {
251 // Function called each time a test page has been completed
252 // Can be used to over-rule default behaviour
253
254 pageXMLSave(store, testXML, testId);
255 }
256
257 this.initialiseInnerState = function(testXML) {
258 // Parses the received testXML for pre and post test options
259 this.currentStateMap = [];
260 var preTest = $(testXML).find('PreTest')[0];
261 var postTest = $(testXML).find('PostTest')[0];
262 if (preTest == undefined) {preTest = document.createElement("preTest");}
263 if (postTest == undefined){postTest= document.createElement("postTest");}
264 this.currentStateMap.push(preTest);
265 this.currentStateMap.push(testXML);
266 this.currentStateMap.push(postTest);
267 this.currentIndex = -1;
268 this.advanceInnerState();
269 }
270
271 this.advanceInnerState = function() {
272 this.currentIndex++;
273 if (this.currentIndex >= this.currentStateMap.length) {
274 this.currentIndex = null;
275 this.currentStateMap = this.stateMap[this.stateIndex];
276 this.advanceState();
277 } else {
278 if (this.currentStateMap[this.currentIndex].nodeName == "audioHolder") {
279 console.log("Loading test page"+this.currentTestId);
280 } else if (this.currentStateMap[this.currentIndex].nodeName == "PreTest") {
281 popup.initState(this.currentStateMap[this.currentIndex]);
282 } else if (this.currentStateMap[this.currentIndex].nodeName == "PostTest") {
283 popup.initState(this.currentStateMap[this.currentIndex]);
284 } else {
285 this.advanceInnerState();
286 }
287 }
288 }
289
290 this.previousState = function(){};
291 }
292
293 function testEnded(testId)
294 {
295 pageXMLSave(testId);
296 if (testXMLSetups.length-1 > testId)
297 {
298 // Yes we have another test to perform
299 testId = (Number(testId)+1);
300 currentState = 'testRun-'+testId;
301 loadTest(testId);
302 } else {
303 console.log('Testing Completed!');
304 currentState = 'postTest';
305 // Check for any post tests
306 var xmlSetup = projectXML.find('setup');
307 var postTest = xmlSetup.find('PostTest')[0];
308 popup.initState(postTest);
309 }
310 }
311
312 function loadProjectSpec(url) {
313 // Load the project document from the given URL, decode the XML and instruct audioEngine to get audio data
314 // If url is null, request client to upload project XML document
315 var r = new XMLHttpRequest();
316 r.open('GET',url,true);
317 r.onload = function() {
318 loadProjectSpecCallback(r.response);
319 };
320 r.send();
321 };
322
323 function loadProjectSpecCallback(response) {
324 // Function called after asynchronous download of XML project specification
325 var decode = $.parseXML(response);
326 projectXML = $(decode);
327
328 // Now extract the setup tag
329 var xmlSetup = projectXML.find('setup');
330 // Detect the interface to use and load the relevant javascripts.
331 var interfaceType = xmlSetup[0].attributes['interface'];
332 var interfaceJS = document.createElement('script');
333 interfaceJS.setAttribute("type","text/javascript");
334 if (interfaceType.value == 'APE') {
335 interfaceJS.setAttribute("src","ape.js");
336
337 // APE comes with a css file
338 var css = document.createElement('link');
339 css.rel = 'stylesheet';
340 css.type = 'text/css';
341 css.href = 'ape.css';
342
343 document.getElementsByTagName("head")[0].appendChild(css);
344 }
345 document.getElementsByTagName("head")[0].appendChild(interfaceJS);
346
347 // Define window callbacks for interface
348 window.onresize = function(event){resizeWindow(event);};
349 }
350
351 function createProjectSave(destURL) {
352 // Save the data from interface into XML and send to destURL
353 // If destURL is null then download XML in client
354 // Now time to render file locally
355 var xmlDoc = interfaceXMLSave();
356 var parent = document.createElement("div");
357 parent.appendChild(xmlDoc);
358 var file = [parent.innerHTML];
359 if (destURL == "null" || destURL == undefined) {
360 var bb = new Blob(file,{type : 'application/xml'});
361 var dnlk = window.URL.createObjectURL(bb);
362 var a = document.createElement("a");
363 a.hidden = '';
364 a.href = dnlk;
365 a.download = "save.xml";
366 a.textContent = "Save File";
367
368 var submitDiv = document.getElementById('download-point');
369 submitDiv.appendChild(a);
370 popup.showPopup();
371 popup.popupContent.innerHTML = null;
372 popup.popupContent.appendChild(submitDiv)
373 } else {
374 var xmlhttp = new XMLHttpRequest;
375 xmlhttp.open("POST",destURL,true);
376 xmlhttp.setRequestHeader('Content-Type', 'text/xml');
377 xmlhttp.onerror = function(){
378 console.log('Error saving file to server! Presenting download locally');
379 createProjectSave(null);
380 };
381 xmlhttp.send(file);
382 }
383 return submitDiv;
384 }
385
386 // Only other global function which must be defined in the interface class. Determines how to create the XML document.
387 function interfaceXMLSave(){
388 // Create the XML string to be exported with results
389 var xmlDoc = document.createElement("BrowserEvaluationResult");
390 xmlDoc.appendChild(returnDateNode());
391 for (var i=0; i<testState.stateResults.length; i++)
392 {
393 xmlDoc.appendChild(testState.stateResults[i]);
394 }
395
396 return xmlDoc;
397 }
398
399 function AudioEngine() {
400
401 // Create two output paths, the main outputGain and fooGain.
402 // Output gain is default to 1 and any items for playback route here
403 // Foo gain is used for analysis to ensure paths get processed, but are not heard
404 // because web audio will optimise and any route which does not go to the destination gets ignored.
405 this.outputGain = audioContext.createGain();
406 this.fooGain = audioContext.createGain();
407 this.fooGain.gain = 0;
408
409 // Use this to detect playback state: 0 - stopped, 1 - playing
410 this.status = 0;
411 this.audioObjectsReady = false;
412
413 // Connect both gains to output
414 this.outputGain.connect(audioContext.destination);
415 this.fooGain.connect(audioContext.destination);
416
417 // Create the timer Object
418 this.timer = new timer();
419 // Create session metrics
420 this.metric = new sessionMetrics(this);
421
422 this.loopPlayback = false;
423
424 // Create store for new audioObjects
425 this.audioObjects = [];
426
427 this.play = function() {
428 // Start the timer and set the audioEngine state to playing (1)
429 if (this.status == 0) {
430 // Check if all audioObjects are ready
431 if (this.audioObjectsReady == false) {
432 this.audioObjectsReady = this.checkAllReady();
433 }
434 if (this.audioObjectsReady == true) {
435 this.timer.startTest();
436 if (this.loopPlayback) {
437 for(var i=0; i<this.audioObjects.length; i++) {
438 this.audioObjects[i].play(this.timer.getTestTime()+1);
439 }
440 }
441 this.status = 1;
442 }
443 }
444 };
445
446 this.stop = function() {
447 // Send stop and reset command to all playback buffers and set audioEngine state to stopped (1)
448 if (this.status == 1) {
449 for (var i=0; i<this.audioObjects.length; i++)
450 {
451 this.audioObjects[i].stop();
452 }
453 this.status = 0;
454 }
455 };
456
457
458 this.newTrack = function(url) {
459 // Pull data from given URL into new audio buffer
460 // URLs must either be from the same source OR be setup to 'Access-Control-Allow-Origin'
461
462 // Create the audioObject with ID of the new track length;
463 audioObjectId = this.audioObjects.length;
464 this.audioObjects[audioObjectId] = new audioObject(audioObjectId);
465
466 // AudioObject will get track itself.
467 this.audioObjects[audioObjectId].constructTrack(url);
468 };
469
470 this.newTestPage = function() {
471 this.state = 0;
472 this.audioObjectsReady = false;
473 this.metric.reset();
474 this.audioObjects = [];
475 };
476
477 this.checkAllPlayed = function() {
478 arr = [];
479 for (var id=0; id<this.audioObjects.length; id++) {
480 if (this.audioObjects[id].played == false) {
481 arr.push(this.audioObjects[id].id);
482 }
483 }
484 return arr;
485 };
486
487 this.checkAllReady = function() {
488 var ready = true;
489 for (var i=0; i<this.audioObjects.length; i++) {
490 if (this.audioObjects[i].state == 0) {
491 // Track not ready
492 console.log('WAIT -- audioObject '+i+' not ready yet!');
493 ready = false;
494 };
495 }
496 if (ready == false) {
497 var holder = document.getElementById('testWaitIndicator');
498 holder.style.visibility = "visible";
499 setInterval(function() {
500 document.getElementById('testWaitIndicator').style.visibility = "hidden";
501 }, 10000);
502 }
503 return ready;
504 };
505
506 }
507
508 function audioObject(id) {
509 // The main buffer object with common control nodes to the AudioEngine
510
511 this.id = id;
512 this.state = 0; // 0 - no data, 1 - ready
513 this.url = null; // Hold the URL given for the output back to the results.
514 this.metric = new metricTracker();
515
516 this.played = false;
517
518 // Create a buffer and external gain control to allow internal patching of effects and volume leveling.
519 this.bufferNode = undefined;
520 this.outputGain = audioContext.createGain();
521
522 // Default output gain to be zero
523 this.outputGain.gain.value = 0.0;
524
525 // Connect buffer to the audio graph
526 this.outputGain.connect(audioEngineContext.outputGain);
527
528 // the audiobuffer is not designed for multi-start playback
529 // When stopeed, the buffer node is deleted and recreated with the stored buffer.
530 this.buffer;
531
532 this.loopStart = function() {
533 this.outputGain.gain.value = 1.0;
534 this.metric.startListening(audioEngineContext.timer.getTestTime());
535 }
536
537 this.loopStop = function() {
538 if (this.outputGain.gain.value != 0.0) {
539 this.outputGain.gain.value = 0.0;
540 this.metric.stopListening(audioEngineContext.timer.getTestTime());
541 }
542 }
543
544 this.play = function(startTime) {
545 this.bufferNode = audioContext.createBufferSource();
546 this.bufferNode.owner = this;
547 this.bufferNode.connect(this.outputGain);
548 this.bufferNode.buffer = this.buffer;
549 this.bufferNode.loop = audioEngineContext.loopPlayback;
550 this.bufferNode.onended = function() {
551 this.owner.metric.stopListening(audioEngineContext.timer.getTestTime());
552 };
553 if (this.bufferNode.loop == false) {
554 this.metric.startListening(audioEngineContext.timer.getTestTime());
555 }
556 this.bufferNode.start(startTime);
557 this.played = true;
558 };
559
560 this.stop = function() {
561 if (this.bufferNode != undefined)
562 {
563 this.bufferNode.stop(0);
564 this.bufferNode = undefined;
565 this.metric.stopListening(audioEngineContext.timer.getTestTime());
566 }
567 };
568
569 this.constructTrack = function(url) {
570 var request = new XMLHttpRequest();
571 this.url = url;
572 request.open('GET',url,true);
573 request.responseType = 'arraybuffer';
574
575 var audioObj = this;
576
577 // Create callback to decode the data asynchronously
578 request.onloadend = function() {
579 audioContext.decodeAudioData(request.response, function(decodedData) {
580 audioObj.buffer = decodedData;
581 audioObj.state = 1;
582 }, function(){
583 // Should only be called if there was an error, but sometimes gets called continuously
584 // Check here if the error is genuine
585 if (audioObj.state == 0 || audioObj.buffer == undefined) {
586 // Genuine error
587 console.log('FATAL - Error loading buffer on '+audioObj.id);
588 }
589 });
590 };
591 request.send();
592 };
593
594 }
595
596 function timer()
597 {
598 /* Timer object used in audioEngine to keep track of session timings
599 * Uses the timer of the web audio API, so sample resolution
600 */
601 this.testStarted = false;
602 this.testStartTime = 0;
603 this.testDuration = 0;
604 this.minimumTestTime = 0; // No minimum test time
605 this.startTest = function()
606 {
607 if (this.testStarted == false)
608 {
609 this.testStartTime = audioContext.currentTime;
610 this.testStarted = true;
611 this.updateTestTime();
612 audioEngineContext.metric.initialiseTest();
613 }
614 };
615 this.stopTest = function()
616 {
617 if (this.testStarted)
618 {
619 this.testDuration = this.getTestTime();
620 this.testStarted = false;
621 } else {
622 console.log('ERR: Test tried to end before beginning');
623 }
624 };
625 this.updateTestTime = function()
626 {
627 if (this.testStarted)
628 {
629 this.testDuration = audioContext.currentTime - this.testStartTime;
630 }
631 };
632 this.getTestTime = function()
633 {
634 this.updateTestTime();
635 return this.testDuration;
636 };
637 }
638
639 function sessionMetrics(engine)
640 {
641 /* Used by audioEngine to link to audioObjects to minimise the timer call timers;
642 */
643 this.engine = engine;
644 this.lastClicked = -1;
645 this.data = -1;
646 this.reset = function() {
647 this.lastClicked = -1;
648 this.data = -1;
649 };
650 this.initialiseTest = function(){};
651 }
652
653 function metricTracker()
654 {
655 /* Custom object to track and collect metric data
656 * Used only inside the audioObjects object.
657 */
658
659 this.listenedTimer = 0;
660 this.listenStart = 0;
661 this.listenHold = false;
662 this.initialPosition = -1;
663 this.movementTracker = [];
664 this.wasListenedTo = false;
665 this.wasMoved = false;
666 this.hasComments = false;
667
668 this.initialised = function(position)
669 {
670 if (this.initialPosition == -1) {
671 this.initialPosition = position;
672 }
673 };
674
675 this.moved = function(time,position)
676 {
677 this.wasMoved = true;
678 this.movementTracker[this.movementTracker.length] = [time, position];
679 };
680
681 this.startListening = function(time)
682 {
683 if (this.listenHold == false)
684 {
685 this.wasListenedTo = true;
686 this.listenStart = time;
687 this.listenHold = true;
688 }
689 }
690
691 this.stopListening = function(time)
692 {
693 if (this.listenHold == true)
694 {
695 this.listenedTimer += (time - this.listenStart);
696 this.listenStart = 0;
697 this.listenHold = false;
698 }
699 };
700 }
701
702 function randomiseOrder(input)
703 {
704 // This takes an array of information and randomises the order
705 var N = input.length;
706 var K = N;
707 var holdArr = [];
708 for (var n=0; n<N; n++)
709 {
710 // First pick a random number
711 var r = Math.random();
712 // Multiply and floor by the number of elements left
713 r = Math.floor(r*input.length);
714 // Pick out that element and delete from the array
715 holdArr.push(input.splice(r,1)[0]);
716 }
717 return holdArr;
718 }
719
720 function returnDateNode()
721 {
722 // Create an XML Node for the Date and Time a test was conducted
723 // Structure is
724 // <datetime>
725 // <date year="##" month="##" day="##">DD/MM/YY</date>
726 // <time hour="##" minute="##" sec="##">HH:MM:SS</time>
727 // </datetime>
728 var dateTime = new Date();
729 var year = document.createAttribute('year');
730 var month = document.createAttribute('month');
731 var day = document.createAttribute('day');
732 var hour = document.createAttribute('hour');
733 var minute = document.createAttribute('minute');
734 var secs = document.createAttribute('secs');
735
736 year.nodeValue = dateTime.getFullYear();
737 month.nodeValue = dateTime.getMonth()+1;
738 day.nodeValue = dateTime.getDate();
739 hour.nodeValue = dateTime.getHours();
740 minute.nodeValue = dateTime.getMinutes();
741 secs.nodeValue = dateTime.getSeconds();
742
743 var hold = document.createElement("datetime");
744 var date = document.createElement("date");
745 date.textContent = year.nodeValue+'/'+month.nodeValue+'/'+day.nodeValue;
746 var time = document.createElement("time");
747 time.textContent = hour.nodeValue+':'+minute.nodeValue+':'+secs.nodeValue;
748
749 date.setAttributeNode(year);
750 date.setAttributeNode(month);
751 date.setAttributeNode(day);
752 time.setAttributeNode(hour);
753 time.setAttributeNode(minute);
754 time.setAttributeNode(secs);
755
756 hold.appendChild(date);
757 hold.appendChild(time);
758 return hold
759
760 }
761
762 function testWaitIndicator() {
763 var hold = document.createElement("div");
764 hold.id = "testWaitIndicator";
765 hold.style.position = "absolute";
766 hold.style.left = "100px";
767 hold.style.top = "10px";
768 hold.style.width = "500px";
769 hold.style.height = "100px";
770 hold.style.padding = "20px";
771 hold.style.backgroundColor = "rgb(100,200,200)";
772 hold.style.visibility = "hidden";
773 var span = document.createElement("span");
774 span.textContent = "Please wait! Elements still loading";
775 hold.appendChild(span);
776 var body = document.getElementsByTagName('body')[0];
777 body.appendChild(hold);
778 }
779
780 var hidetestwait = null;