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');
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.)
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.
HTML Code:<div class="drag q1 bar" style="top: 10px; left: 0px; position: absolute;">b</div>i assign variables like so:
Code: var style = notationrow[i].childNodes[nodecount].getAttribute("style"); var nodeclass = notationrow[i].childNodes[nodecount].getAttribute("class");
When using the code below the alert returns a value of null. In the past this has never happened, it has always returned the xml file I'm requesting. I have noticed a strange difference between browsers. This script is used to fill a form automatically. In its current state it works perfectly in opera, but does not work in firefox or IE (used to work in all the browsers). I'm by no means a javascript expert, am I missing something here?
I have a form in which I preset some text inside a readonly, disabled textarea using javascript ('data' being the text): document.getElementById("link_of_current_view2").value = data;
However, once I call my .php script to process the form, the element is null. How do I get it to pass along that data, which is in the textbox when the user views the form? <div id="sendlink" class="contact_form" style="z-index:10;"> <a class="close" onclick="document.sendlink_form.reset();return false">CLOSE</a> <form id='sendlink_form' name='sendlink_form' method="post" action="sendlink.php" > <label for="link_of_current_view2">Link: </label> <textarea id="link_of_current_view2" name="_of_current_view2" class="link_of_current_view" rows="2" disabled="disabled" wrap="soft" size="58" value="" readonly="readonly" value=/>
It's purpose is to check for valid date and allows formats mm/dd/yyyy, m/dd/yyyy, mm/d/yyyy or m/d/yyyy.
When I try it with the code below it always returns null.
Code:
function isValidDate(/* String */ p1_date) { var x = "^(((0?[1-9]|1[012])/(0?[1-9]|1d|2[0-8])|(0?[13456789]|1[012])/(29|30)|(0?[13578]|1[02])/31)/(19|[2-9]d)d{2}|0?2/29/((19|[2-9]d)(0[48]|[2468][048]|[13579][26])|(([2468][048]|[3579][26])00)))$";
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?
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');
I'm using the $F of the prototype library to send data through the Ajax Request. I'm having problems using the $F to reference fields sent back through an original Request. My first request sends a form back to the user in the type such as <input text name=foo> and at the bottom of the returned form I have a second ajax call to send the fresh data to the another script. The problem is that the new data in the form cannot be referenced from $F. My question is how can I pass the new data in the javascript to another Ajax call either by $F or by other means?
I have a following string: var myHTML = "<html><body>testing hope this work in html</body></html>"; alert($(myHTML).children("body").html()); Why does the alert return NULL, instead of "testing hope this work in html" ???
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?
I'm trying to retrieve some data trough yahoo pipes, but it always returns null. However if i go to my yahoo pipe's site and i launch it, the pipe works perfectly.[code]
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'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
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].....