Change The Text On Page Dynamically Using GetElementById
May 8, 2010
I'm trying to change the text on my page dynamically using getElementById etc. Just not quite sure how to do it.
<script>
function changeIt() {
document.getElementById('change').innerHTML = '*i want the stuff below here (from 'var' to 'text')*';
}
var Result= ((correct / 5) * 100) + '%';
document.write('<p>Result<b>' + score + '</b></p>');
[Code]...
Just need to know how to put the variables and stuff in the 'innerhtml' part?
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May 8, 2010
I want to use the document.getElementByID method to change the text of an element.
It works and replaces the old text but the new text is lower down when I want the new text to be on the same line.
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Mar 31, 2011
I have a code which is a optional field. But I want to make it mandatory when checkbox will be clicked. When checkbox is unclicked, The text box becomes optional field. Here is the code.
[Code]..
when check box is clicked it will display a red * after the cellphone text field.
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Nov 4, 2010
On my webpage, I dynamically create an iFrame when a button is pressed, then load a html page from within my own domain into the iframe, based on what html page is loaded into a variable. My question is, can I dynamically change the font family of the loaded html page from the javascript of the main page? My code to create the iframe is:
function setSubTxt(){
var par = document.getElementById('parentDiv');
par.innerHTML = '<iframe src="'+subTxt+'" style="width: 375px; position: fixed; height: 365px; left: 400px; top: 145px; border=none;" name="subIframe" frameBorder=0></iframe>';
frames['subIframe'].window.location=subTxt;
document.subIframe.document.body.style.fontFamily = "Arial";
[Code]....
the variable "subTxt" has the url of the html page to be loaded (always on the same domain). The code: document.subIframe.document.body.style.fontFamily = "Arial"; was my attempt to dynamically change the font, but it didn't work. Also, it should be noted that there is no font family set in the html pages which would override this.
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Jul 23, 2005
Can someone tell me how to do this if it is possible?
I have a table based web site, and I would like to dynamically change the
text that is shown in a particular cell of a table. I give the cell the
unique ID label1 so I can get a hold of it, and I can get a javascript to
display the data in an alert box (this is just to see if I can access the
text) with:
mycel = document.getElementById('label1');
myceltext = mycel.childNodes.item(0);
currenttext = myceltext.data;
alert(currenttext);
But how do I exchange the text in this cell for something else?
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Oct 12, 2007
I'm trying to write a Javascript quiz. The idea being that each question has 4 possible answers. The answers being in the form of multiple choice radio button. Instead of having either a long list of radio buttons and questions or loads of pages with tons of duplicated code, I'd like to make the quiz as one page. Pulling the questions, and possible answers from an array. All this I can do, except for changing the text on the radio buttons. In the past I've used.. getElementById with regular text to good effect, but can't manage it with the radio button. Here is part of my test code..
[Code]...
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Aug 3, 2011
I'm having a problem with some dynamically loaded content.
1. Ajax request returns some content that goes in a div. Inside that content, there's a text box with the id "coupon"
2. Also inside that content is a script called add_coupon that sends another ajax request. Use pushes a button, function gets called, all is well.
3. Inside the function, "document.getElementById ( 'coupon' )" returns undefined.
Behold:
<script language='javascript'>
function add_coupon() {
document.getElementById('cart_cc').innerHTML = "<img src='spinner.gif'>";
var coupon = document.getElementById('coupon');
if ( !coupon )
alert ( 'no coupon box' );
$(function() {
$.ajax({
type: 'POST',
url: '/store/ajax_add_coupon/'+$('#coupon').val(),
success: function(data) { $('#cart_cc').html(data); }
});
});
}
</script>
<span style='float: left;'>Coupon: <input type='text' id='coupon' size=15/> <input type='button' value='Add' onclick='add_coupon();' class='btnGreenCSS'/></span>
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Nov 25, 2005
At this point I have been able to add the row. But what I want to do and am having trouble with is alternating the row colour to the dynamically added row element.
Sample of code I am using:
Code:
var tbody = document.getElementById('tableItems');
var row = document.createElement("tr");
var remainder = tbody.rows.length % 2;
if(remainder) {
row.setAttribute("class", "rowLightGreen");
}
var td1 = document.createElement("td");
td1.appendChild(document.createTextNode(qty));
td1.setAttribute("class","qty");
row.appendChild(td1);
tbody.appendChild(row);
One thing that puzzles me, is that even after adding a row the table my table.rows.length still = 0.
Does anyone know how I can determine the appropriate amount of rows so that I can apply the appropriate class?
Or is there just something blatantly wrong in my approach?
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Jul 20, 2005
Using JavaScript, can I tag a block of text and then change the text
appearing in that block?
I'm doing a type of calculator and I'd like to display the resulting
number in a <td> (or div or whatever works) on the page. I'd like to
avoid using a text form field for the output.
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Nov 25, 2006
I want to change the stylesheet for this page. Why the form select doesn't work?
link id="est" rel="stylesheet" type="text/css" href="est.css">
function Changue() {
var posibles = document.forms[0].XXX;
document.getElementById("est").href=posibles.options[posibles.selectedIndex].value;
}
<form>
..........
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Nov 1, 2010
how to change getElementById to a 'class' equivalent? This script works, however, I need to use it 3 times on a page but it uses ID instead of class. The two IDs that I wrap around the images that would scroll are: #marqueecontainer and #vmarquee.
I tried getElementByClass but it doesn't work.
Code:
#marqueecontainer{
position: relative;
width: 270px; /*marquee width */
height: 730px; /*marquee height */
[Code].....
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Apr 21, 2011
I'm writing a calculator script that will need user input (how much they pay on internet, phone or cable bill) and then multiply those numbers by a known rate and then show the customer the new number.
I have the math setup (working right now), and the script works to spit out the answers in an alert.
Instead of the alert (which is the only thing I can do correctly at this point), I need the script to give the answers for each bill and then a total answer at the bottom.
The script is here, it's all in the index file. [URL]
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Aug 16, 2009
I need to change the font color, font size & font face of some text assigned in a div. To do so I have a form select option menu at the top, adn below the menu three's 3/4 divs with some text. I need to change text properties of the div from select menu, and the page must not refresh. Its actually a little version of text editor.
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Dec 6, 2011
I have a list of paragraphs that all need to say the same thing. Each has it's own ID and class (each one has a different font color) and I need a co-worker to be able to type a phrase or name into a form field & hit "go" and have it update all of the paragraphs to reflect that text in the various colors. I also need it to have a predetermined default phrase.
Example:
Welcome Home (in blue)
Welcome Home (in red)
Welcome Home (in green)
Welcome Home (in black)
Welcome Home (in yellow) etc.
I already have the framework set up (with the colors and everything) it's just a matter of changing the contents of the paragraph-tag.
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Mar 24, 2009
I'm reusing a basic text sizer script and want it to focus on an element of my choice. What is fundamentally wrong with this code? The only issue is that document.getElementById(container); comes back 'not defined' in firebug, and the script doesn't make it to the alert(c) call.
The var container is passed in as 'caseDetail'. Which is a div element generated dynamically with PHP, and has the id "caseDetail". I've loaded the script dynamically inside this element itself (shame on me).
var min=8;
var max=18;
function increaseFontSize(container) {
var c = document.getElementById(container);
[Code]....
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Aug 11, 2010
I just picked up JQuery yesterday and I am trying to access the text of a dynamically created text box.[code]The problem is in the btnSave.click function the message always says that the .val() is undefined even when there is text in the textbox.
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Nov 1, 2011
<html>
<head>
<script type="text/javascript">
var a = january
var b = febuary
var c = march
function test()
[Code]...
I tried to explain it pretty well in the comment tags
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Mar 25, 2010
While this works in IE I just cant get it to work in Firefox. Any changes in the textarea are not passed on when you click the 'doit' button and the 'addTxt' button only works once. How can I get the 'doit' button to display the text entered into the textarea?
Code HTML4Strict:
<html>
<head>
<script type="text/javascript">
[Code]....
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May 13, 2004
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.
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Jul 12, 2011
how to change the content of a div while text is being entered into an input box.
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Jan 3, 2006
so i have two functions, expand and colllapse. i want the buttons to start on collapse, and when pushed, change to expand. for instance:
<img id=img1 src=minus.png
so now in the collapse function, i want something like:
var imgID;
imgID = document.getElementById("img"+what);
imgID.src = "plus.png";
imgID.
changing the src works, but changing the onClick does not.
I've found some ways to change the onClick to a function Code:
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Jun 8, 2009
I have a bunch of input rows, each with id in the form of something like.. item:characteristics:age or item:setting:type1:blah. It's kind of like going down folders to get to the item I want. So as you can see in the code, I am splitting each id and trying to rebuild it in the form item[characteristics][age] then set it to the value of the input field. This is modifying the properties of the item. We already have the item object passed into my code and i'm simply modifying the properties to the new values from the user's input.
Does anyone know how I can do this without eval? I'm mainly using it because the variable name can't be hard coded, it is dynamic.
Here's the code I have so far.
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Jun 11, 2009
Basically, I have a bunch of input rows, each with id in the form of something like.. item:characteristics:age or item:setting:type1:blah. It's kind of like going down folders to get to the item I want. So as you can see in the code, I am splitting each id and trying to rebuild it in the form item[characteristics][age] then set it to the value of the input field. This is modifying the properties of the item. We already have the item object passed into my code and i'm simply modifying the properties to the new values from the user's input.
Does anyone know how I can do this without eval? I'm mainly using it because the variable name can't be hard coded, it is dynamic. Here's the code I have so far.
[Code]...
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Nov 26, 2009
am at the very beginning of Javascript. This is the first website I tried to include Javascript, so don't be too mean
What I want to do is to change a CSS property dynamically. It'll be best if I show you what I did:
<script language="javascript">
function ChangeHeight()
{
var browser = navigator.appName;
[Code].....
Why I want do change this? Well... Different people have different resolutions and I want that my website fits perfectly into the browser.
alert(document.getElementById('content').style.height); This shows just an empty MessageBox with nothing in it.
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Nov 20, 2006
Something I would like to do is change the value of a label. Let's say I have a textbox and onchange, I want to change the value of that label (say adding numbers together or string concatenation).
This works fine if I use another textbox instead of a label, but I want to show Text rather than an input type. Is this possible? I avoid JS at all costs b/c I tend to suck with client-side programming.
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Mar 2, 2007
i want to change an images opacity dynamically in mozilla.
im doing it when clicking a button. yhe code used is as follows.
document.getElementById('id').style.-moz-opacity =.5;
but it is not working. i know the problem is with
style.-moz-opacity
assignment. can anyone tell me a best solution.
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