Develop Reference

How do you get and set the caret position in a contenteditable?

This question has some answers here but there's a few problems.
Basically I want to do the following:
get caret position
set innerHTML of the contenteditable (this resets the caret position)
set the caret position to the value obtained in step 1.
A lot of the existing answers seem to be complicated by cross-browser support but I only need it to work on modern chrome. It also needs to work with html. Ideally it would look exactly like this:
var index = getCaretPosition(contentEditableDiv);
onEdit(contentEditableDiv); // <-- callback function that manipulates the text and sets contentEditableDiv.innerHTML = theManipulatedText
setCaretPosition(contentEditableDiv, index);
I've tried looking through the documentation but it's not straightforward and I think this question is due for a leaner answer anyways.

This seems to work for me but I've only tested it for my use cases.
GET
function getCaretIndex(win, contentEditable) {
var index = 0;
var selection = win.getSelection();
var textNodes = textNodesUnder(contentEditable);
for(var i = 0; i < textNodes.length; i++) {
var node = textNodes[i];
var isSelectedNode = node === selection.focusNode;
if(isSelectedNode) {
index += selection.focusOffset;
break;
}
else {
index += node.textContent.length;
}
}
return index;
}
SET
function setCaretIndex(win, contentEditable, newCaretIndex) {
var cumulativeIndex = 0;
var relativeIndex = 0;
var targetNode = null;
var textNodes = textNodesUnder(contentEditable);
for(var i = 0; i < textNodes.length; i++) {
var node = textNodes[i];
if(newCaretIndex <= cumulativeIndex + node.textContent.length) {
targetNode = node;
relativeIndex = newCaretIndex - cumulativeIndex;
break;
}
cumulativeIndex += node.textContent.length;
}
var range = win.document.createRange();
range.setStart(targetNode, relativeIndex);
range.setEnd(targetNode, relativeIndex);
range.collapse();
var sel = win.getSelection();
sel.removeAllRanges();
sel.addRange(range);
}
REQUIRED HELPER
function textNodesUnder(node) { // https://stackoverflow.com/a/10730777/3245937
var all = [];
for (node=node.firstChild;node;node=node.nextSibling){
if (node.nodeType==3) {
all.push(node);
}
else {
all = all.concat(textNodesUnder(node));
}
}
return all;
}
TEST (just call this function)
It loops through the text in a contenteditable, sets the caret index, then reads it. Console output is: (setIndex | getIndex)
function testContentEditable() {
document.body.innerHTML = "<div contenteditable></div>"
var ce = document.querySelector("[contenteditable]");
ce.focus();
ce.innerHTML = "HELLO <span data-foo='true' style='text-decoration: underline;'><span style='color:red;'>WORLD</span> MY</span> NAME IS BOB";
var i = 0;
var intv = setInterval(function() {
if(i == ce.innerText.length) {
clearInterval(intv);
}
setCaretIndex(window, ce, i);
var currentIndex = getCaretIndex(window, ce);
console.log(i + " | " + currentIndex);
i++;
}, 100);
}
FIDDLE
function getCaretIndex(win, contentEditable) {
var index = 0;
var selection = win.getSelection();
var textNodes = textNodesUnder(contentEditable);
for(var i = 0; i < textNodes.length; i++) {
var node = textNodes[i];
var isSelectedNode = node === selection.focusNode;
if(isSelectedNode) {
index += selection.focusOffset;
break;
}
else {
index += node.textContent.length;
}
}
return index;
}
function setCaretIndex(win, contentEditable, newCaretIndex) {
var cumulativeIndex = 0;
var relativeIndex = 0;
var targetNode = null;
var textNodes = textNodesUnder(contentEditable);
for(var i = 0; i < textNodes.length; i++) {
var node = textNodes[i];
if(newCaretIndex <= cumulativeIndex + node.textContent.length) {
targetNode = node;
relativeIndex = newCaretIndex - cumulativeIndex;
break;
}
cumulativeIndex += node.textContent.length;
}
var range = win.document.createRange();
range.setStart(targetNode, relativeIndex);
range.setEnd(targetNode, relativeIndex);
range.collapse();
var sel = win.getSelection();
sel.removeAllRanges();
sel.addRange(range);
}
function textNodesUnder(node) { // https://stackoverflow.com/a/10730777/3245937
var all = [];
for (node=node.firstChild;node;node=node.nextSibling){
if (node.nodeType==3) {
all.push(node);
}
else {
all = all.concat(textNodesUnder(node));
}
}
return all;
}
function testContentEditable() {
document.body.innerHTML = "<div contenteditable></div>"
var ce = document.querySelector("[contenteditable]");
ce.focus();
ce.innerHTML = "HELLO <span data-foo='true' style='text-decoration: underline;'><span style='color:red;'>WORLD</span> MY</span> NAME IS BOB";
var i = 0;
var intv = setInterval(function() {
if(i == ce.innerText.length) {
clearInterval(intv);
}
setCaretIndex(window, ce, i);
var currentIndex = getCaretIndex(window, ce);
console.log(i + " | " + currentIndex);
i++;
}, 100);
}
testContentEditable();

How to EXCLUDE MasterPage items when bulk exporting all text Frames

When I'm exporting all text frames from a file, the script sees the textframes in the masterpage and messes up the calculation and gives an error at the end because those frames are locked and can't be exported.
var myDoc = app.activeDocument;
var myFolder = myDoc.filePath;
var myImage = myDoc.textFrames;
var JPEGFolder = new Folder(myFolder+"/"+app.activeDocument.name+"_"+"JPEG");
if (!JPEGFolder.exists)
JPEGFolder.create();
var PromFolder = new Folder(myFolder+"/"+app.activeDocument.name+"_"+"Promethean");
if (!PromFolder.exists)
PromFolder.create();
var ToplamSoru = 0 ;
for (var i=0; myImage.length>i; i++)
{
app.select(myImage[i]);
ToplamSoru = ToplamSoru +1;
}
var Cevapli = (ToplamSoru/2-4);
alert(Cevapli);
app.jpegExportPreferences.jpegQuality = JPEGOptionsQuality.maximum;
app.jpegExportPreferences.exportResolution = 150;
for (var p=0; p < myDoc.pages.length; p++)
{
for (var i=0; myImage.length>i; i++)
{
if ( i <= Cevapli -1){
if( i < 9)
{
app.select(myImage[i]);
var SoruNo = myImage[i].contents.substring(1,2);
app.selection[0].exportFile(ExportFormat.JPG, File(JPEGFolder+"/"+SoruNo+".JPEG"), false);
}
else
{
app.select(myImage[i]);
var SoruNo = myImage[i].contents.substring(1,3);
app.selection[0].exportFile(ExportFormat.JPG, File(JPEGFolder+"/"+SoruNo+".JPEG"), false);
}
}
else{
//alert(Cevapli);
if( i < 9 + Cevapli+1)
{
app.select(myImage[i]);
var SoruNo = myImage[i].contents.substring(1,2);
app.selection[0].exportFile(ExportFormat.JPG, File(PromFolder+"/"+SoruNo+".JPEG"), false);
}
else
{
app.select(myImage[i]);
var SoruNo = myImage[i].contents.substring(1,3);
app.selection[0].exportFile(ExportFormat.JPG, File(PromFolder+"/"+SoruNo+".JPEG"), false);
}
}
}
}
alert ("Done")
Basically, when i run the code, everything is OK and exported as wanted, but when there are more than the fixed number of text frames in the masterpage, it will be screwed up once again.
var Cevapli = (ToplamSoru/2-4);
Is where i decrease the value of the variable because there are 2 master pages with 4 different locked text frames.
How can i actually make the code exlude the items in the masterpages altogether?
The working code below:
var myDoc = app.activeDocument;
var myFolder = myDoc.filePath;
var TotalQuestions = 0 ;
var JPEGFolder = new Folder(myFolder+"/"+app.activeDocument.name+"_"+"JPEG");
var PromFolder = new Folder(myFolder+"/"+app.activeDocument.name+"_"+"Promethean");
var TotalPages = 0;
var Extension = prompt("Başına ne koyalım?","fen-");
if (!JPEGFolder.exists)
JPEGFolder.create();
if (!PromFolder.exists)
PromFolder.create();
for (i=0; i< app.documents[0].pages.length; i++)
{
TotalPages = TotalPages+1;
for (ii=0; ii< app.documents[0].pages[i].textFrames.length; ii++)
{
app.select(app.documents[0].pages[i].textFrames[ii]);
TotalQuestions = TotalQuestions +1;
}
}
//alert(ToplamSoru);
var Cevapli = TotalPages/2;
//alert(Cevapli);
app.jpegExportPreferences.jpegQuality = JPEGOptionsQuality.maximum;
app.jpegExportPreferences.exportResolution = 72;
var result = confirm ("Devam?", false,"EU Thingie");
if(result ==true){
for (i=0; i < app.documents[0].pages.length; i++){
// CEVAPLI //
if(i < Cevapli){
//alert(i+" "+ii+" IF");
for (ii=0; ii < app.documents[0].pages[i].textFrames.length; ii++){
var QID = app.documents[0].pages[i].textFrames[ii].contents.substring(1,3);
if( QID < 10){
app.select(app.documents[0].pages[i].textFrames[ii]);
var Less = app.documents[0].pages[i].textFrames[ii].contents.substring(1,2);
app.selection[0].exportFile(ExportFormat.JPG, File(PromFolder+"/"+Extension+Less+".JPEG"), false);
}
else{
app.select(app.documents[0].pages[i].textFrames[ii]);
var More = app.documents[0].pages[i].textFrames[ii].contents.substring(1,3);
app.selection[0].exportFile(ExportFormat.JPG, File(PromFolder+"/"+Extension+More+".JPEG"), false)
}
}
}
// CEVAPSIZ //
else{
//alert(i+" "+ii+" ELSE");
for (ii=0; ii < app.documents[0].pages[i].textFrames.length; ii++){
var QID = app.documents[0].pages[i].textFrames[ii].contents.substring(1,3);
if( QID < 10){
app.select(app.documents[0].pages[i].textFrames[ii]);
var Less = app.documents[0].pages[i].textFrames[ii].contents.substring(1,2);
app.selection[0].exportFile(ExportFormat.JPG, File(JPEGFolder+"/"+Extension+Less+".JPEG"), false);
}
else{
app.select(app.documents[0].pages[i].textFrames[ii]);
var More = app.documents[0].pages[i].textFrames[ii].contents.substring(1,3);
app.selection[0].exportFile(ExportFormat.JPG, File(JPEGFolder+"/"+Extension+More+".JPEG"), false)
}
}
}
}
}
//alert ("Done")

This will loop through the pages and every textFrame on each page. The text frames from Master Pages will be ignored.
for (i=0; i< app.documents[0].pages.length; i++){
for (ii=0; ii< app.documents[0].pages[i].textFrames.length; ii++){
$.writeln(app.documents[0].pages[i].textFrames[ii].contents);
}
}

Javascript: scope effect despite order of execution

Please note: This is not a question about scope, per se. I understand that in order to make the code work, I should make a deep copy of the variable board rather than assigning var tboard = board. However, I am not clear why making a shallow copy has the effect I describe below.
I am experiencing something I find baffling. Basically, a global variable (board) gets altered and I have no clue how. board is initialized in the function NewGame() (which is called from select()) as an empty array. After it is initialized, nothing else is called until the user clicks a square on the board (assuming the user has selected Xs for simplicity). When that happens, the function playerMove() is called. The baffling thing is that console.log(board) at the top of playerMove() prints out an array that has an x is the clicked position and os everywhere else (ie not empty). This is bizarre because the board is empty at the end of select() (which called NewGame()) and nothing else should happen in between. To demonstrate this, I print out the function name at the top of each function and I print out the board variable in the select() function and playerMove() function to show that it changes despite nothing else being called. Please note that to get this behavior, refresh the page (otherwise the board variable starts out full of os). I think this must be somewhat an issue of scope (because I am not making a deep copy of board) but it's strange because I have no clue what is being called that is changing the variable before it gets printed out at the top of playerMove().
Here is the link to my pen and the code: http://codepen.io/joshlevy89/pen/MKjxop?editors=101
$(document).ready(function() {
var pSym; // player's symbol
var cSym; // computer's symbol
var board;
var whosMove; // can be "player" or "computer" or "neither"
var gameOver;
setup();
$("#newgame").on('click', '#X', select);
$("#newgame").on('click', '#O', select);
$("#restart").on('click', setup);
$("table").on('click', 'td', playerMove);
function playerMove()
{
console.log('playerMove');
console.log(board);
if (whosMove === "player")
{
var val = $(this).data('value');
$('#g' + val).text(pSym);
var arr = PositionToCoords(val);
board[arr[0]][arr[1]] = pSym;
var tboard = board;
var gc = gameCheck(tboard);
if (gc>=0)
{
endGame(gc);
setTimeout(function(){setup();}, 1000);
return;
}
whosMove = "computer";
computerMove();
}
}
function computerMove() {
console.log('computerMove');
//var p1 = Math.floor(Math.random() * 3);
//var p2 = Math.floor(Math.random() * 3);
var tboard = board;
var pos = chooseMove(tboard);
var arr = PositionToCoords(pos);
board[arr[0]][arr[1]] = cSym;
DrawPosition(arr[0], arr[1], cSym);
var tboard = board;
var gc = gameCheck(tboard);
if (gc>=0) {
endGame(gc);
setTimeout(function(){setup();}, 1000);
return;
}
whosMove = "player";
}
function chooseMove(inboard) {
console.log('chooseMove');
// get the possible moves
var moves=[];
var scores = [];
for (var i=1;i<10;i++) {
var arr = PositionToCoords(i);
if (inboard[arr[0]][arr[1]] === undefined) {
moves.push(i);
var tboard = inboard;
tboard[arr[0]][arr[1]] = cSym;
var gc = gameCheck(tboard);
scores.push(gc);
}
}
//console.log(moves);
//console.log(scores);
return moves[0]; // TEMPORARY
}
function endGame(gc) {
console.log('endGame');
var str;
if (gc===1) { // somebody won
if (whosMove==="player"){
str = "You Won!"
}
else {
str = "You Lost :(";
}
}
else if (gc === 0){//draw
str = "It's a draw."
}
html = '<div id="closer">' + str + '</div>';
$('#endgame').html(html);
}
function gameCheck(tboard) {
console.log('gameCheck');
// get symbol to check for
var sym;
if (whosMove === "player") {
sym = pSym;
} else {
sym = cSym;
}
// check if in a row
var hrow;
var vrow;
// check for horizonal row
for (var i = 0; i < 3; i++) {
hrow = true;
vrow = true;
for (var j = 0; j < 3; j++) {
if (tboard[i][j] !== sym) {
hrow = false;
}
if (tboard[j][i] !== sym) {
vrow = false;
}
}
if ((hrow) || (vrow)) {
return 1;
}
}
var fdrow = true;
var bdrow = true;
for (var i = 0; i < 3; i++) {
if (tboard[i][i] !== sym) {
fdrow = false;
}
if (tboard[i][2 - i] !== sym) {
bdrow = false;
}
}
if ((fdrow) || (bdrow)) {
return 1;
}
// otherwise, check if board is full
var full = true;
for (var i = 1; i < 10; i++) {
var arr = PositionToCoords(i);
if (tboard[arr[0]][arr[1]] === undefined) {
full = false;
break;
}
}
if (full === true) {
return 0;
}
// if neither 0 (tie) or win (1), return -1 (game not over)
return -1;
}
function select() {
console.log('select');
pSym = $(this).data('value');
$('#newgame').html('');
NewGame();
console.log(board);
}
function setup() {
console.log('select');
$('#endgame').html('');
html = '<div id="opener">Xs or Os? <div id="buttons">';
html += '<div id="X" data-value="X" class="btn btn-default">Xs</div>';
html += '<div id="O" data-value="O" class="btn btn-default">Os</div>';
html += '</div></div>';
$('#newgame').html(html);
}
function NewGame() {
console.log('NewGame');
$('td').empty();
board = new Array(3);
for (i = 0; i < 3; i++) {
board[i] = new Array(3)
};
if (pSym === "X") {
cSym = "O";
whosMove = "player";
} else {
cSym = "X";
whosMove = "computer";
computerMove();
}
}
function DrawPosition(p1, p2, sym) {
console.log('DrawPosition');
var pos = p1 * 3 + (p2 + 1);
$("#g" + pos).text(sym)
}
function PositionToCoords(pos) {
console.log('PositionToCoords');
var p1 = Math.ceil(pos / 3) - 1;
var p2 = ((pos - 1) % 3);
var arr = [p1, p2];
return arr;
}
});
Thanks in advance.

Simply add the break in the for loop fixes the problem. Am I missing anything?
function chooseMove(inboard) {
console.log('chooseMove');
// get the possible moves
var moves = [];
var scores = [];
for (var i = 1; i < 10; i++) {
var arr = PositionToCoords(i);
if (inboard[arr[0]][arr[1]] === undefined) {
moves.push(i);
var tboard = inboard;
tboard[arr[0]][arr[1]] = cSym;
var gc = gameCheck(tboard);
scores.push(gc);
break; // <<<<<<<<<<<< This break guarantees that the computer only makes one move
}
}
//console.log(moves);
//console.log(scores);
return moves[0]; // TEMPORARY
}

imageArray[i] = imageItem is incompatible

I have been struggling with trying to implement the the answer from TheNoble-Coder for Difficulty in Understanding Slideshow script.
His "Well if you want..." solution sounds like a very elegant solution for folders containing a varying number of images.
However I have have not been able to get it to work. Using Free JavaScript Editor by Yaldex to debug I get 'Error: Incompatible types' for the line indicated:
var place; //For convenience this is best as a global
function imageItem(url)
{
var img = new Image();
img.src = url;
return url;
}
for(var i=0; i<5; i++)
{
imageArray[i] = imageItem(imageDir + i + ".jpg"); <-----Incompatible
}
I would really appreciate any assistance.
The entire script is:
<script language="JavaScript">
var interval = 4000;
var random_display = 0;
var imageDir = "images/";
var imageNum = - 1;
var place; //For convenience this is best as a global
function imageItem(url)
{
var img = new Image();
img.src = url;
return url;
}
for(var i=0; i<5; i++)
{
imageArray[i] = imageItem(imageDir + i + ".jpg");
}
function randNum(x, y)
{
var range = y - x + 1;
return Math.floor(Math.random() * range) + x;
}
function getNextImage()
{
imageNum = (random_display) ? randNum(0, imageArray.length-1) : ((imageNum+1) % imageArray.length);
return imageArray[imageNum];
}
function getPrevImage()
{
imageNum = (imageNum-1 >= 0) ? (imageNum-1) : (imageArray.length-1);
return imageArray[imageNum];
}
function prevImage()
{
var image_item = getPrevImage();
place.src = place.alt = image_item.url;
}
function nextImage()
{
var image_item = getNextImage();
place.src = place.alt = image_item.url;
}
function play()
{
nextImage();
timerID = setTimeout(play, interval);
}
window.onload = function()
{
place = document.slideImg;
play();
};
</script>

Try printing imageArray[i] and imageItem(imageDir + i + ".jpg") to see if it does what you you're expecting from it. I believe that's the key for the solution... :)

javascript - Failed to load source for: http://localhost/js/m.js

Why oh why oh why... I can't figure out why I keep getting this error. I think I might cry.
/*** common functions */
function GE(id) { return document.getElementById(id); }
function changePage(newLoc) {
nextPage = newLoc.options[newLoc.selectedIndex].value
if (nextPage != "")
{
document.location.href = nextPage
}
}
function isHorizO(){
if (navigator.userAgent.indexOf('iPod')>-1)
return (window.orientation == 90 || window.orientation==-90)? 1 : 0;
else return 1;
}
function ShowHideE(el, act){
if (GE(el)) GE(el).style.display = act;
}
function KeepTop(){
window.scrollTo(0, 1);
}
/* end of common function */
var f = window.onload;
if (typeof f == 'function'){
window.onload = function() {
f();
init();
}
}else window.onload = init;
function init(){
if (GE('frontpage')) init_FP();
else {
if (GE('image')) init_Image();
setTimeout('window.scrollTo(0, 1)', 100);
}
AddExtLink();
}
function AddExtLink(){
var z = GE('extLink');
if (z){
z = z.getElementsByTagName('a');
if (z.length>0){
z = z[0];
var e_name = z.innerHTML;
var e_link = z.href;
var newOption, oSe;
if (GE('PSel')) oSe = new Array(GE('PSel'));
else
oSe = getObjectsByClassName('PSel', 'select')
for(i=0; i<oSe.length; i++){
newOption = new Option(e_name, e_link);
oSe[i].options[oSe[i].options.length] = newOption;
}
}
}
}
/* fp */
function FP_OrientChanged() {
init_FP();
}
function init_FP() {
// GE('orientMsg').style.visibility = (!isHorizO())? 'visible' : 'hidden';
}
/* gallery */
function GAL_OrientChanged(link){
if (!isHorizO()){
ShowHideE('vertCover', 'block');
GoG(link);
}
setTimeout('window.scrollTo(0, 1)', 500);
}
function init_Portfolio() {
// if (!isHorizO())
// ShowHideE('vertCover', 'block');
}
function ShowPortfolios(){
if (isHorizO()) ShowHideE('vertCover', 'none');
}
var CurPos_G = 1
function MoveG(dir) {
MoveItem('G',CurPos_G, dir);
}
/* image */
function init_Image(){
// check for alone vertical images
PlaceAloneVertImages();
}
function Img_OrtChanged(){
//CompareOrientation(arImgOrt[CurPos_I]);
//setTimeout('window.scrollTo(0, 1)', 500);
}
var CurPos_I = 1
function MoveI(dir) {
CompareOrientation(arImgOrt[CurPos_I+dir]);
MoveItem('I',CurPos_I, dir);
}
var arImgOrt = new Array(); // orientation: 1-horizontal, 0-vertical
var aModeName = new Array('Horizontal' , 'Vertical');
var arHs = new Array();
function getDims(obj, ind){
var arT = new Array(2);
arT[0] = obj.height;
arT[1] = obj.width;
//arWs[ind-1] = arT;
arHs[ind] = arT[0];
//**** (arT[0] > arT[1]) = (vertical image=0)
arImgOrt[ind] = (arT[0] > arT[1])? 0 : 1;
// todor debug
if(DebugMode) {
//alert("["+obj.width+","+obj.height+"] mode="+((arT[0] > arT[1])? 'verical' : 'hoziontal'))
writeLog("["+obj.width+","+obj.height+"] mode="+((arT[0] > arT[1])? 'verical' : 'hoziontal')+' src='+obj.src)
}
if (arImgOrt[ind]) {
GE('mi'+ind).className = 'mImageH';
}
}
function CompareOrientation(imgOrt){
var iPhoneOrt = aModeName[isHorizO()];
GE('omode').innerHTML = iPhoneOrt;
//alert(imgOrt == isHorizO())
var sSH = (imgOrt == isHorizO())? 'none' : 'block';
ShowHideE('vertCover', sSH);
var sL = imgOrt? 'H' : 'V';
if (GE('navig')) GE('navig').className = 'navig'+ sL ;
if (GE('mainimage')) GE('mainimage').className = 'mainimage'+sL;
var sPfL = imgOrt? 'Port-<br>folios' : 'Portfolios' ;
if (GE('PortLnk')) GE('PortLnk').innerHTML = sPfL;
}
function SetGetDim( iMInd){
var dv = GE('IImg'+iMInd);
if (dv) {
var arI = dv.getElementsByTagName('img');
if (arI.length>0){
var oImg = arI[0];
oImg.id = 'Img'+iMInd;
oImg.className = 'imageStyle';
//YAHOO.util.Event.removeListener('Img'+iMInd,'load');
YAHOO.util.Event.on('Img'+iMInd, 'load', function(){GetDims(oImg,iMInd);}, true, true);
//oImg.addEventListener('load',GetDims(oImg,iMInd),true);
}
}
}
var occ = new Array();
function PlaceAloneVertImages(){
var iBLim, iELim;
iBLim = 0;
iELim = arImgOrt.length;
occ[0] = true;
//occ[iELim]=true;
for (i=1; i<iELim; i++){
if ( arImgOrt[i]){//horizontal image
occ[i]=true;
continue;
}else { // current is vertical
if (!occ[i-1]){//previous is free-alone. this happens only the first time width i=1
occ[i] = true;
continue;
}else {
if (i+1 == iELim){//this is the last image, it is alone and vertical
GE('mi'+i).className = 'mImageV_a'; //***** expand the image container
}else {
if ( arImgOrt[i+1] ){
GE('mi'+i).className = 'mImageV_a';//*****expland image container
occ[i] = true;
occ[i+1] = true;
i++;
continue;
}else { // second vertical image
occ[i] = true;
occ[i+1] = true;
if (arHs[i]>arHs[i+1]) GE('mi'+(i+1)).style.height = arHs[i]+'px';
i++;
continue;
}
}
}
}
}
//arImgOrt
}
function AdjustWebSiteTitle(){
//if (GE('wstitle')) if (GE('wstitle').offsetWidth > GE('wsholder').offsetWidth) {
if (GE('wstitle')) if (GE('wstitle').offsetWidth > 325) {
ShowHideE('dots1','block');
ShowHideE('dots2','block');
}
}
function getObjectsByClassName(className, eLTag, parent){
var oParent;
var arr = new Array();
if (parent) oParent = GE(parent); else oParent=document;
var elems = oParent.getElementsByTagName(eLTag);
for(var i = 0; i < elems.length; i++)
{
var elem = elems[i];
var cls = elem.className
if(cls == className){
arr[arr.length] = elem;
}
}
return arr;
}
////////////////////////////////
///
// todor debug
var DebugMode = (getQueryVariable("debug")=="1")
function getQueryVariable(variable) {
var query = window.location.search.substring(1);
var vars = query.split("&");
var sRet = ""
for (var i=0;i<vars.length;i++) {
var pair = vars[i].split("=");
if (pair[0] == variable) {
sRet = pair[1];
}
}
return sRet
//alert('Query Variable ' + variable + ' not found');
}
var oLogDiv=''
function writeLog(sMes){
if(!oLogDiv) oLogDiv=document.getElementById('oLogDiv')
if(!oLogDiv) {
oLogDiv = document.createElement("div");
oLogDiv.style.border="1px solid red"
var o = document.getElementsByTagName("body")
if(o.length>0) {
o[0].appendChild(oLogDiv)
}
}
if(oLogDiv) {
oLogDiv.innerHTML = sMes+"<br>"+oLogDiv.innerHTML
}
}

First, Firebug is your friend, get used to it. Second, if you paste each function and some supporting lines, one by one, you will eventually get to the following.
var DebugMode = (getQueryVariable("debug")=="1")
function getQueryVariable(variable)
You can't execute getQueryVariable before it is defined, you can create a handle to a future reference though, there is a difference.
There are several other potential issues in your code, but putting the var DebugMode line after the close of the getQueryVariable method should work fine.

It would help if you gave more context. For example, is
Failed to load source for:
http://localhost/js/m.js
the literal text of an error message? Where and when do you see it?
Also, does that code represent the contents of http://localhost/js/m.js? It seems that way, but it's hard to tell.
In any case, the JavaScript that you've shown has quite a few statements that are missing their semicolons. There may be other syntax errors as well. If you can't find them on your own, you might find tools such as jslint to be helpful.

make sure the type attribute in tag is "text/javascript" not "script/javascript".

I know it is more than a year since this question was asked, but I faced this today. I had a
<script type="text/javascript" src="/test/test-script.js"/>
and I was getting the 'Failed to load source for: http://localhost/test/test-script.js' error in Firebug. Even chrome was no loading this script. Then I modified the above line as
<script type="text/javascript" src="/test/test-script.js"></script>
and it started working both in Firefox and chrome. Documenting this here hoping that this will help someone. Btw, I dont know why the later works where as the previous one didn't.