I keep getting an error stating "getElementById("ballElement") is null, but I have a div with that exact id. I have looked at the JS script before that line, but found no errors there either. Please take a minute to see if you find something.
[Code]...
Here's my code :
1: function myFunction(myLink, base) {
2: var myCheckBox;
3: var idx;
[Code].....
when I view source of the page , I see the values of sng_ids_{index} hidden parameters set correctly but I get this javascript error :
Error: document.getElementById("sng_ids_"+i.toString()) is null
I modified a little a script from dynamicdrive.com (Animated Collapsible DIV v2.01[URL]... It works well, but something is wrong. When you click on the button image a javascript error popup appears:
An error exists inside your "ontoggle" function:
TypeError: document.getElementById(divobj.id + "_info-toggle") is null
Aborting execution of function.
You can see it in: http://cineout.es/div_test/divs_test2.html
I wrote the simple code in javascript but it dosent work its
document.getElementById("Label1").innerText = "Change";
but it gives an error : "'document.getElementById(...)'is null or not an object "
I'm getting the following problem. The reason is that the object appears through AJAX. But if I choose it NOT to appear it gives this problem. How can I avoid this? I put an if statement inline
Code:
if(document.getElementById('vsbtitle_1').value!=null){
thisurlext+='&btitle1='+document.getElementById('vsbtitle_1').value;
}
Error: document.getElementById("vsbtitle_1") is null
[Code].....
Basically i'm trying to draw a box over an image which
is turning out to be a nightmare. The problem i'm getting at the moment
is that i'm creating a line with <div which works when it's not hidden
but I need to be able to make it hidden so I can use layers to show all
when it finished drawing to make it smoother. This is how some other
scripts are doing it that i've seen. So i've got it drawing a line and I
need getElementById to pick out the layer but it's only picking out NULL
with the one i've got enabled below. I've tried the others but they just
come out as errors. I need to get top2 which is the <div line to show
itself but I can't seem to reference it by getElementById. I use linux
mozilla so i need it working in mozilla as well as windows that's why
i'm using getElementById. My code is below any ideas anyone?
Suppose I have the following inside a function:Code JavaScript:document.getElementById('display_content').innerHTML = "hello";The above works.However, when I define it like the following it says display_content is null on firefox error console.
Code JavaScript:
var display_content = document.getElementById('display_content');
[code]....
This function was working in Safari but not in Firefox. I was referencing a couple of elements using the forms[] array instead of getElementById(). I changed those refernces to use getElementById() and now the calculateTotals function does not work in Safari or Firefox.
So I did an alert box to see ucell and it was null. I tried two more alert boxes for the id I was passing to getElementById and for the id of the actual element on the page (which was also created dynamically). They were both identical. The element is created in the onload event, and I am not calling the calculateTotals function until there is onchange event on a text box. So it is not that the element has not been created yet. . Code:
Why this simple script is not working. Trying to use getElementById() but Firebug says the ID is null. I've tried troubleshooting by accessing other ID's but they all come back 'null'. Trying to add 2 classes based on an ID:
<script>
pageId = 1;
if(pageId == 1) {
//alert('This is page' + pageId);
document.getElementById('arta').setAttribute("class", "menu-on menu-a");
}
<./script>
An online example is here: [URL]. I also tried accessing the id like below but got the same result:
document.arta.setAttribute('class', 'menu-on menu-a');
For some reason getElementById continues to tell me that it had grabbed a null value despite any value I input. I am using firefox 3.6.8. Am I doing something wrong here?
[Code]...
This seemed like it should be so simple. It works fine in Firefox, but not in IE. The goal is to disable the form's Submit button, until the question is answered. (The alert is for troubleshooting.)
Code:
Obviously, this HTML is in a form:
Code:
I have a html file and a separate javascript file.
The html file contains: <input type="reset" id = "resetButton" />
I want a message to pop up if the reset button is pressed.
So in the js file I have: document.getElementById("resetButton").onclick = doAlert;
doAlert is a function that simply does: alert("Do you want to reset?");
I know my separate js file is linked correctly because if I just put in alert("hello"); in the js file then it works. But if I use the document.getElementById thing in the js file, then there is an error. The error, according to the error console, says that "resetButton" is null.
I have some javascript to test for screen resolution and if it's of size x it loads one flash file and if it's larger it loads a different flash file. The code is not in a function so it should run when the page loads. The test for screen resolution is working but firefox error console says document.getElementById("embed1") is null.I thought it might just not agree with my using innerHTML to add a flash file but when I just did
Code:
window.alert(document.getElementById("embed1").innerHTML); it still had the same error.
does javascript outside of a function run before some elements are loaded? I see no reason for this error.
Code:
<script type="text/JavaScript">
var screenwidth = screen.width;
if (screenwidth <= 1024) {[code].....
I've been trying for hours and I can't figure out why IE6 is throwing an derror on the following line of code.
Code:
var parts = rgbString.match(/^rgb((d+),s*(d+),s*(d+))$/); This is the function:
Code:
function rgbToHex(rgbString)
{
var parts = rgbString.match(/^rgb((d+),s*(d+),s*(d+))$/);[code]....
And this is the error:'null' is null or not an object
I want to restrict getElementById to search children of a specific element instead of searching the entire document, in the same way that I can do getElementsByTagName using a specific element as the parent.
In this particular instance the parent is a table and the elements I'm interested in are all TDs, so I did the basic getElementsByTagName('TD') off the table and looped through this array checking the IDs. However, I'm suspecting that the browser can do getElementById faster than I can do a loop in javascript. Is there a neater way to do this? For now, I'll settle for IE-only solutions, though it would be nice to have things work in generic browsers.
I put a long script but the problem is small.
var book1 = bobj1.value;
var chapter1 = cobj1.value;
var verse1 = vobj1.value;
var book2 = bobj2.value;
var chapter2 = cobj2.value;
var verse2 = vobj2.value;
[Code].....
I don't know if this is written properly: if(bcv[a]!= ""){ The reason this is happening is because the error shows: Error: cobj1 is null Source File: [URL]
I have this annoying problem with netscape...
I'm trying to access a form value by using getElementByID and in NS i
end up with a null reference.
The following HTML is the form component that gives me headache:
<form name='task' ...>
....
<select name='prioritySelect' class='selectwidth'>
<option value=''>Choose one</option>
<option value=Ƈ'>Critical</option>
<option value=ƈ'>High</option>
<option value=Ɖ'>Medium</option>
<option value=Ɗ'>Low</option>
</select>
....
</form>
And the related javascript code:
if(document.getElementById("prioritySelect").disabled == false)
{ ... }
When digging into this I can get the desired information by using
document.task.prioritySelect, but that should not be necessary, right?
I hope that anyone knows how to deal with this problem..
I can run the following code in Firefox. But, in IE8 the lines below cause an error:
Code:
I did find the javascript twice in my code, once in the header and once here, so i removed it from the header. I also changed to src to the full url. But i am still getting this and i dont know why. the file is located in the root directory. found a solution. basically Internet Explorer is crappy and doesnt like the setAttribute property so had to change the onchange handler by directly changing the attrbute for the object like so.object.onchange = function() {}i have no idea what they means, does that mean i need to change swfobject.js or does that mean i have to change my xml request. and if it is the swfobject i have no clue what they mean or what lines
View 2 Replies View RelatedI have a javascript function which uses the method
document.getElementById.
I'm using it to decide whether a checkbox has been ticked or not. This
decision is encoded in an if statement with the condtion being
if (document.getElementById(checkboxtoupdate).value ==1)
/* The Code */
function set(object)
{
var checkboxtoupdate = object.value;
if (document.getElementById(checkboxtoupdate).value ==1)
document.getElementById(checkboxtoupdate).value = 0;
else
document.getElementById(checkboxtoupdate).value = 1;
}
The "object" accesses a html tag which has an value attribute e.g
value="7400"
However Netscape Navigator 7.1 does not seem to recognise
"document.getElementById(checkboxtoupdate).value"
and reports an error that
document.getElementById(checkboxtoupdate).value has no properties.
But Internet Explorer has no problem with this at all.
Is there another way to do this so as to be recognised by Netscape 7.1?
I use in my javascript the "document.getElementById" code.
This code works as it should in Firefox, but in IE I get the following error:
I am getting an error on this code - sometimes! - and I'm not sure what it is. If I run this as is there is no error. If I add it into another page with other stuff it's ok for a while and then I get an error. So, I added my new page block my block to this code and waited for the error to appear so I could determine a conflict - but it was fine. And then a few clicks later the error.
This is the error in IE. In Firefox it seems to be fine.
I have a section of code that works perfect in IE and I'm getting the following error in the error console that comes with Mozilla Firefox.
theForm is null
Here is the code:
The following code is in my form. I'm using coldfusion for the core of my site:
This is my code
Code:
Code:
The line that is causing the problem is
Code:
The function is simply called in an onclick event. you can ignore the for loop that all works fine, that just swaps some images in a list.
But the line that is causing the problem is supposed to insert the id of the element that called the function into the input 'ratingField'
What is wrong with this line of code? the debugger says 'is null or not an object'
There is nothing wrong with star.id it is used elsewhere in the function and definately contains a value so I think the problem might be with the ratingInput.value part or the line
This is the code, and I couldn't figure out whats wrong, it gives an error in IE, "document.sitenav.prev is null or not an object"
Code:
I have the following code, in my doc.load on my script.js file:
Code:
And it works great, more importantly if i have that code on a page that does not have any ".innerPage_nav li a" elements the page still loads fine
But i am trying to include my script.js file into another site and when i do i get a JS halt error because ".innerPage_nav li a" does not exist? (says object is null)
What could be different that would cause jQuery to keep going if the element isn't there in one case, but halt in another?