Simple (simply Irritating) Page Refresh Error In NN

May 22, 2002

I have a VERY simple script to reload a page with fresh values when the value of a scroll menu changes. Trouble is, of course, NN 4.- freaks and closes the browser when this runs. No error warning, no error log?

The line..

<select name="Country" size="1" onChange="repopmenu(this,17)">

The script..
<script language="JavaScript">
function repopmenu(which,key)
n = which.value;
var url = ("eventedit.asp?country=" + n + "&key=" + key)
location.href = url;

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Ajax Synchronous Request - Page Refresh And The Error

Dec 12, 2009

I have been using asynchronous requests for a long time. so the response was processed in a callback function. I thought of not using async so i made synchronous requests. The reason is that i dont have to have two more lines for checking the status and the onreadystatechange.... my synchronous requests would be like this...


so from the code you can understand that there is no need of a callback function and if conditions to check ready state... ... So there is no problem in the above code. The problem araises here... if i press the F5 (refresh) key or do a page refresh when the process is waiting for the response i get an (NS ERROR - firefox ( i have not yet checked that in IE browsers) (javascript error) though the process completes successfully. why?

Do we have to check whether the page is navigating away while in synchronous operation and abort the request? or what could be the reason for the error. This will not happen in async requests because that is also the reason for async...

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Dec 18, 2009

Is there a code to auto refresh the page if 503 apache error message appear ?

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Dec 19, 2009

is there a code to auto refresh the page if 503 apache error message appear ?

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May 4, 2009

I have a very strange issue which happens only on the Mac/Firefox 2 (and 3 I believe) : [URL] The top left logo (ball) is a simple flash 'spin' animation, that is activated using javascript via the navigation (onmouseover effect). This works fine on Windows - Firefox, IE and Mac - Safari. However on Mac/Firefox, the logo ball on page load simply DOES NOT APPEAR. However, when you simply SCROLL down or if you move your mouse over the navigation (which calls the flash), then the logo appears. Basically, it's really odd because the logo ball is there, but Mac/Firefox does not show it until you do something to the page, like scroll.

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Apr 15, 2010

So my problem is that i can't send form data in FF without page refresh (though in IE7-8 everything works smoothly).

My code fragments:

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I need a very simple script that will refresh a single image every blank seconds. I have this one, but I am having trouble getting it to work: Code:

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Apr 14, 2009

I'm having a problem on a particular site I am working on.

The URL is [url]

The problem is that when I try to close the browser in IE on the main page I get an popup with an error which says: "An error has occured on the script on this page"

Do you want to continue running scripts on this page?

"Yes" or "No" (Buttons to Click)

I have to click the 'Yes' button about thirty times before the browser will finally close. Does anyone have any idea what this is?

Here is the source code.


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var num1;
var num2;
var num3;


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Jan 27, 2006

Sorry this will be an ignorant question I know, but I'm just trying to implement some quick JS in my form to check if the fields were filled in:

function check_form() {

if (survey.form_firstname.value == "") {
firstname_error = "-Please enter your first name

if (survey.form_lastname.value == "") {
lastname_error = "-Please enter your last name

if (survey.form_phone.value == "") {
phone_error = "-Please enter your phone number

if (survey.form_email.value == "") {
email_error = "-Please enter your email

if (!survey.form_agree.checked) {
agree_error = "-You must be over 18 and provide accurate information

errors = firstname_error + lastname_error + phone_error + email_error + agree_error;

if(!errors) {
return true;
} else {
alert("There were errors:
" + errors);
delete firstname_error;
delete lastname_error;
delete phone_error;
delete email_error;
delete agree_error;
delete errors;
return false;

It only seems to work if no values are filled in, if one of the fields is filled in the error checking fails. Again, I'm extremely new to JS, i've only ever copy/pasted and this is the first time i've tried writing a piece.

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Code JavaScript:
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I am new to Javascript. I copied this script from the web, but I get an error at this line:parent.removeChild(child);The error says "Invalid argument".

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Jan 19, 2011

I know I have a simple syntax error. Trying to call a function which changes the style of a div element on mouseover. Heres my code.
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Variable is used cause I will have to use it more often later in the script.

<div id="countermarker1">
<img src="countermarker.jpg" width="20" height="14"
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CSS (know its not really relevant just to avoid questions about whether its right)
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width: 80px;
display: none;
JS and css is externally srced.

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Aug 15, 2011

I have written the following javascript code which makes a simple calculation and writes between the <span> tags using Inner HTML

My code is:
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function hesapla() {
kredimiktari = document.hesapla.miktar.value
kredivadesi = document.hesapla.vade.value;
faiz = document.hesapla.faiz.value;
ayliktaksit1 = (kredimiktari * faiz) / kredivadesi;
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document.getElementById('ayliktaksit').innerHTML = "<strong>Taksit / Ay :</strong>" + ayliktaksit1;
document.getElementById('geriodeme').innerHTML = "<strong>Taksit / Ay :</strong>" + geriodeme1;}
<form name="hesapla">

<input type="text" name="miktar" value="Kredi Miktarı" onfocus = "if (this.value == 'Kredi Miktarı') this.value = '';" onblur = "if (this.value == '') this.value = 'Kredi Miktarı';" />
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<input type="text" name="faiz" value="Faiz Oranı" onfocus = "if (this.value == 'Faiz Oranı') this.value = '';" onblur = "if (this.value == '') this.value = 'Faiz Oranı';" />
<div id="gosterim"><span id="ayliktaksit"></span><span id="geriodeme"></span></div>
<input type='button' value='Hesapla' onClick='hesapla()'><br><br>
<img src="images/dot2.png" width="180" height="2" alt="dot"/>

I am really confused as similar code on Tizag web site works fine.
<script type="text/javascript">
function changeText(){
document.getElementById('boldStuff').innerHTML = 'Fred Flinstone';
<p>Welcome to the site <b id='boldStuff'>dude</b> </p>
<input type='button' onclick='changeText()' value='Change Text'/>

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Things seem to work fine except some times the loading will fail due to a problem such as network error or dropped connection or something. Then the browser will actually cache the image as failed and will not re-attempt to get it again from the server even though it would have probably succeeded on the second attempt.

I have done some testing and it seems that with Firefox I can go through the above procedure (img.src = ....) and it will attempt to get the image again. IE doesn't do that. It will immediately fire onerror again even though if it had attempted to load the image again it would have succeeded.

Any ideas how to get IE to drop the failed image from the cache and request it again from the server?

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<meta http-equiv="Content-type" content="text/html;charset=UTF-8" />
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But often, if I want to stop a hyperlink from working normally, I can
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Suppose I attach the function "alertDanger" to this link:

function alertDanger() {
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Because I return false, the default behavior doesn't occur. Would there
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function alertDanger() {

Perhaps preventDefault is only for those occassions when the code can
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