Dynamically Change A Property In JS?
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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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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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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Jul 23, 2005
I would like to change the alt-text with the changing of the image during a
mouseover action.
Can document.images[0].altView be changed dynamically?
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Dec 2, 2010
I am dynamically creating a checkbox element. I need to then have assign the checked property to it or not. But In the code below, it's always checked because the property is present..
Code JavaScript:
$('<input>', {
type: "checkbox",
id: "checkbox" + value.AttributeName,
[Code]....
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Jul 11, 2011
I am currently encountering a problem with setting "display" property from "none" to "block":
Browsers will refresh itself when the display property is changed; this causes the element to display then suddenly disappear after the page reload. Do you guys have an idea what I can do to avoid it?
I tried using jquery's show command, css command with setting display to block, and pure javascript method like document.getElementById("theId").style.display="block".
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Nov 19, 2009
I had read from books that the constructor property of object is inherited from its prototype. And the prototype can be changed dynamically. New property can be added to or deleted from object even it was created before the prototype change.
But I got confused on below codes.
But the actual result (both IE and firefox) is
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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 15, 2010
I get an error when I try to dynamically add an attribute to some elements, since I been getting the error "Object doesn't support this property or method" in IE I reduced the attribute value to just alert.
Code JavaScript:
Note that in firefox all the elements with the class boxcontainer gets "hello world" alert. I removed this specific code (shown above) out of the page and the error in IE goes away, so I'm 100% sure nothing else is causing it.
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Mar 28, 2007
I have developed a script that change the font size in css, but only
the attribute "font-size" on the body tag, not change the entire
active stylesheet.
When i click to change the size
<a href="#" title="Change Font Size"
onclick="cambia_font_size(2);">A</a>
It works fine, but when i try to check the cookie to set the default
font size, it does not work.
The cookie stores the value correctly and i can read the value. The
problem is when i try to change the value:
document.getElementsByTagName("body")[0].style.fontSize=tam;
I have tried also writing this code at the end of the html document
but it doesnt work
<script type="text/javascript">inicializa_fontsize();</script>
What could happen? Code:
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Aug 11, 2009
I have a JS script that presents a series of "pages" with different questions inside a single HTML file, by rewriting certain <div>s. I have an object like this that contains the questions and information about answer labels etc (the idea is that this should be easy to modify for someone who doesn't know JS):
[Code]...
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Nov 23, 2010
I have this simple manual photo slide show. It shows four photos and when you click the next button and it moves one photo over and one photo back for the previous button. I have to moving by changing the CSS property of 'left' by 195 pixels each move. So for it to move next it will subtract 195 pixels from the left property and for moving back it add 195 pixels to the left property. I have the code setup so when you click it changes the property of left to either -195 or 195 pixels but I need it so it actually does the math, not just give it a set value. But I don't know how to do that.code...
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Feb 6, 2006
I am working on creating a simple image gallery. I have added styling around the thumbnail images (border and padding). I would like to change the border color when the item is hovered over. I know this can be done rather easily with the getElementById command. Can someone help me understand this process? Here's a snippet of the list that I am working with...
Here's the CSS:
ul {
padding:0;
margin:0;
position:relative;
}
li {
float:left;
padding:0 .5em .3em .5em;
list-style:none;
}
#gallery {
list-style:none;
}
#gallery li {
display:inline;
}
#gallery li a img {
border:1px solid #ccc;
padding:3px;
}
Here's the HTML:
<ul id="gallery">
<li><a href="path/to/image/large/" title="title/of/image/"><img src="path/to/image/thumb/" alt="title/of/image/" /></a></li>
<li><a href="path/to/image/large/" title="title/of/image/"><img src="path/to/image/thumb/" alt="title/of/image/" /></a></li>
<li><a href="path/to/image/large/" title="title/of/image/"><img src="path/to/image/thumb/" alt="title/of/image/" /></a></li>
</ul>
I would like to change the border color from #ccc to #3455ef when the item is hovered over, and ideally have a different style when the item is clicked (or active).
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Jul 23, 2005
I have several tags on a webpage of the same class. If the user clicks a
specific checkbox I'd like to be able to alter the display property of the
class, affecting all objects of that class.
This is an intranet application so we know that javascript will be enabled
and the browser will be IE.
How can I affect all the members of this class? Is there a way I can toggle
the DISPLAY property of a class so all the elements using that class would
be affected? Code:
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Feb 21, 2010
I'm looking for a way to add or change a property value in a previously defined CSS class - not just HTML objects that have that class. Then if later objects are assigned with this class, the objects would inherit the properties of the updated class. For example, if I change the class "image" to add "display:none", and then add the "image" class to an object, it would be displayed or not displayed depending on how this was previously defined.
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Jan 18, 2010
how to change the css display property of a table, from hidden, to block outside of an iframe.
//This data is outside of the iframe
<style>
#table {display: hidden; z-index: 100;}
</style>
[Code]....
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Feb 15, 2012
The script is working, tab-content is changing but when clicked a tab I want to change class property of the li of active tab as class="current"How can I do it
<ul class="nav-content">
<li class="current first-li"><a href="#tabs-1">tab 1</a></li>
<li><a href="#tabs-2">tab 2</a></li>
[code]....
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May 20, 2009
I'm using this function to change the display property of one field based on the input (value property) of another
Code:
function disableField(owner,reason) {
if(document.getElementById(owner).value == '000001' || document.getElementById(owner).value == 'None' ||
[code]....
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Feb 23, 2009
I'm attempting to change the display property of certain divs depending on the criteria of multiple select boxes.
I got it to work by GetElementsByTagName('div') but it then selects all divs rather then the select few i actually want it to work on. I tried changing the selection to GetElementsByName but this doesn't work, why i don't really know.
I've dumped the source code below:
Code:
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Jan 20, 2010
I am trying to use Javascript to change the CSS property fontSize to increase over a small amount of time. Here's the code:
Code:
function iscalled(id)
{
changesize(15,25,id)
[Code]....
I want to have the font size dynamically change, in the (id) object. I experimented with several versions of setTimeout, because it wasn't delaying at all. This script will run through setattr() only twice and doesn't modify the font size.
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Apr 28, 2011
I'm doing a very simple expand/collapse function using 'slideToggle'. The button that triggers this event simply says 'Expand/collapse'. I want this text to change depending on whether an element is visible or hidden.
[Code]...
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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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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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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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