...is Null Or Not An Abject
Jan 6, 2006
I have a submit button that I want to enable or disable based on 2 jsp variables when the page loads. I am loading the following code with a window.onload:
function enableSubmit() {
var noMI = <%= UserInformationVO.isNoMi() %>;
var otherJobTitle = "<%= UserInformationVO.getOtherJobTitle() %>";
if( noMI && (otherJobTitle == "SEROB") )
{
alert("Should be enabled");
document.getElementById("pbRegistration").disabled = false;
return true;
}
else
{
alert("Should be disabled");
document.form.pbRegistration.disabled = true;
alert("Should be disabled - why aren't you?");
return false;
}}
When I try to load it I get the following error:
'document.getElementById(...)' is null or not an object
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Jul 30, 2011
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
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Feb 3, 2010
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
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Feb 26, 2009
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]
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Jun 20, 2010
My code is in the attachment alex.txt.When i press the button for first time it gives me error: 'null' is null or not an object. But when i press it again or refresh the page and press the button it gives me the result that i expect.When i change the var pdbfile1,2,3 values(for example with 2x4n;3gis;1crn) and press the button again there is the error again and i have to refresh the page again.
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Jan 20, 2010
We are trying to use some javascript for a slideshow and are getting the following error message in our browser.
Unfortunately, we only have basic CSS and HTML knowledge. I was hoping the error might be an easy fix for someone on this forum.
The code is as follows:
What changes need to be made to this code?
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Oct 5, 2010
I'm not to familiar with js but I'm having a problem with, mootools.js in IE 8 "null" is not a null or not an object line 8, 13, 59
Parts of my site are not showing up and this just started happening.
[url]
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May 31, 2011
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]...
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Sep 10, 2009
$.getJSON('/VersionQueryJsonAction',{verID:verid},function(data){
if data.verMailDate is null,i need it is "",not "null",.
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Dec 14, 2009
have a function in which i have document.getElementById('yn').value='Y' alert(document.getElementById('yn').value) but still get get null value
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Sep 15, 2004
I have this reg exp
var queryAdd = /?stationval=([^&]+)/.exec(url)
it should return
queryAdd[0] = '?id=AY'
queryAdd[1] = 'AY'
which works fine, as long as there is a stationval in the url, but if the user has not yet specified it stationval= nothing, which is throwing the script saying that 0 is null or not an object.
How do I catch this eventuality? I have tried if(queryAdd[0]==0) and if(queryAdd[0]==null) but get the same error
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Jul 23, 2005
How to check for null attribute in form input field using IE
this does not work in IE:
var curr_id = tablecells[i].getAttribute('name');
if (curr_id != null){
....
}
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Jul 20, 2005
I remember using if statements with null in it. For example, at one
point I used this:
if (value == null) {
value = "something";
}
document.write(value)
However, this script causes an error in any browser. Why can't it
correct the value like it should?
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Jun 18, 2010
I need to check to see if a cookie has been previously created:
var startnum = readCookie('a1');
if (document.cookie.indexOf('a1') == -1){
var startnum = "0";
[code]....
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Jun 14, 2005
When are you allowed to use null as a namespace in functions like createElementNS? Most of the time you see people using a namespace all the time or null all the time. But I can't seem to find a real rule...
I use the xhtml-namespace for xhtml and the svg-namespace for svg, but I saw a lot of examples using 'null' as a namespace... Is that allowed?
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Sep 15, 2009
The first alert seems to contradict the second and third alerts:
Code:
alert(isNaN(null)); // returns false
alert(parseInt(null)); // returns NaN
alert(parseFloat(null)); // returns NaN
alert(null.toFixed(2)); // error: null has no properties
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Nov 17, 2010
After getting a cryptic "Object required" error from all IE's (6,7,8), I tracked it down. It seemed to be coming from my library, line 134 in bold
Code:
Basis.hasClass = function(target, classValue) {
var pattern = new RegExp('(^| )' + classValue + '( |$)');
if (pattern.test(target.className)) {
[code]....
The Typekiezen is a weird one; if there's a nicer/better way of writing that, that would be nice, but it happens this form input does several things when it's clicked... the others only bring up an associated value for the option chosen so they're simpler.Does anyone know why IE can't read this " document.getElementById(Begrafenis.kosten[input.id][val].hide[result])" ...or another way I could write it so that IE does get it. Basically, the code needs to grab the ID's "Postal" and "Box" so the show/hide scripts can DoStuff to them.
Even if I do a bit of
if (value !== null) {
Basis.add/removeClass(value, 'none');
}
this still isn't going get IE to do the right thing, just remove the error.
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Jul 23, 2005
I have a site that is supposed to be 'real-time' which has a frameset
of 2 rows (the bottom row is 1 pixel so essentially invisible to IE
users which is the requirement for the product). The bottom frame
refreshes using an http-refresh every 15 seconds. If new data is
available on the server, it tells the top page to refresh. For checks
and balances, the top frame has a form at the bottom of the page with a
'clockBox'..which is essentially a text box that gets updated every
second so it looks like a timer. When the bottom frame refreshes, it
waits 5 seconds then resets the top counter to 0. The top counter
continues to count. If the top counter gets to 30 (which it never
should unless the bottom frame gets stuck), it refreshes the bottom
frame. Code:
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Jul 20, 2005
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?
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Jun 29, 2011
I am using jQuery for the first time, I think I have everything setup correctly and I have two datepickers on my page that appear to be functioning correctly and displaying the appropriate dates, but when I attempt to get the values (text) of the textboxestheyare always null even thought the correct dates show in the controls onthe page. What am I doing wrong? Do I need to include my code?
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Sep 15, 2011
I'm currently trying to use jQuery to update a database without refreshing the page. I have 3 pages, the visible PHP page (test.php), javascript.js (jQuery file), and file1.php (page to run queries and update database) test.php is just a file that uses classes to make each link unique. when the image with the class is clicked, it runs javascript.js. ( i know there's a reference to file2.php and i won't be using that until i get this working.. )
[Code]...
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Feb 4, 2010
I use Google Chrome because of the Javascript debugger that comes included and I keep getting the following errors with my AJAX script
Code:
Uncaught TypeError: Cannot call method 'getElementsByTagName' of null option.html:23
Uncaught TypeError: Cannot call method 'getElementsByTagName' of null
option.html:40
[Code]....
What is supposed to happen is I press either button then it calls either getoptions1() or getoptions2() which then lists the options using listoption() Then the user selects a color and setoption() gets called. I'm having a problem with either getoption function or the listoption function.
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Feb 4, 2009
I open a new window from a JSP.
Code:
function modalWin() {
var url="AddFormSelect.jsp?Application=<%=sApplication%>&PANE_ID="+activePane;
if(activePane!=null){[code]....
And in IE7, window.opener is null, whereas it works fine in FF.
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Mar 27, 2009
I am getting the following error. I have also pasted the code and highlighted the line where i am getting the error.Webpage error details:
Message: 'style' is null or not an object
Line: 353
Char: 2
[code]...
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Feb 6, 2009
this following code is having some problem in checkbox.length or checkbox.checked. this problem exists only in IE browser, in mozilla its working fine....... i have to delete a row on click on checkbox...
var v_checkbox = document.form3.check;
var nb_checked = 0;
var tbl = document.getElementById(id);[code]....
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May 17, 2009
i have issue with my script can any one check this for me i use IE 6 and i getselected is null or not an object error
function movein()
{
var target_list = document.getElementById('target_list');;[code]......
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