DOM - Extending A Form And Table
Jan 9, 2007
How do I extend both the table and the input form? Ultimately, I want it to look like this:
_____________________________
|header |header |header |header |
| INPUT | INPUT | INPUT | INPUT |
Add Row of Inputs Link
_____________________________
|header |header |header |header |
| INPUT | INPUT | INPUT | INPUT |
| INPUT | INPUT | INPUT | INPUT |
Add Row of Inputs Link
I know how to make the html row by using getElementById() or so and I know how to make an input field by createElement() but how do I create and append(?) them together, specifically the multiple input fields inside of the html row?
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Mar 18, 2004
I'm looking for a way to add more field depending on the user's input,. e.g. the user inputs ཆ' in the option, and 10 more sets of fields are displayed below on the same page. How do I go about accomplishing this?
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Jan 22, 2011
I have the following code:
var img = new Image();
img.myProperty = 'something';
I've tried Image.prototype.myProperty and a few other things. It seems IE just doesn't want me extending the Image object.
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Sep 26, 2005
I'm embarking on a rather interesting wine cellaring project where I need to enable a user to add form fields (a complete table row with several fields) on demand.
If they start filling out the form and need another row for another bottle, I need them to be able to click a button that adds a new row to the table with the same fields.
I also need perhaps another button that will create the row and duplicate the form field values of that row. The winery, wine namen and variety may be the same but the year may change and I dont wan thte user to have to do any double entry. I've been researching DOM and have been looking at sites like Quirksmode.
Am I heading in the right direction? I'm just about to go an buy a book on DOM and start really getting into it.
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Jun 2, 2006
I think I can make a good interesting list of postings under this subject header, 'All browsers are cool but IE.'
Anyway, the following code will show a table with an input box labeled, 'name', on all browsers (Gecko, KHTML, Opera) except IE. Is there anybody ever hit on this issue before?
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Jul 23, 2005
Javascript has a very small math function list. However there is no
reason that this list can not be extended greatly. Speed is not an
issue, unless you nest complicated calculations several levels deep. In
that case you need much more ram than a PC has to store functions
calculated in loops so that you do not have to recalculate every time
you cycle through the nest of loops. Using a HD for storage to extend
ram is much too slow for many applications.
Some functions such as hyperbolic ones are easy to add, since they are
just simple combinations of the built in javascript math functions. I
have found a few examples on the web such as Bessel functions. I found
far fewer javascript math functions than I expected on Google searches.
Thus I have had to write several functions of my own.
See http://www.cwdjr.net/math/I0L0andI1L1.html for an example of two
"functions from hell" that are very difficult to evaluate. Fortunately
there are Fortran programs that can be used as a starting point. I was
able to modify the Fortran programs to work on javascript. I have used
these functions for technical applications in the past.
The page is set up to reject the NN 4 series, because it will not
support some of the script needed such as .toExponential(n) and
to.Fixed(n)for writing output in exponential or fixed format. I was
amazed that even the old MSNTV(former WebTV) set-top box, that no
longer is being made, will even support these output formats. I wonder
about IE4. If it will not support these output formats, I can easly
block it by checking for document.getElementById.
The code works properly on the latest versions of IE6, MSN9, Firefox,
Mozilla, Netscape, and Opera. I am not selling anything, so for a
special interest page such as this, I see no need to support older
browsers.
The advantage of doing math with javascript is that it is so portable.
You can do it anywhere you can use a computer, or you can do it on your
own local computer offline. There are several math programs for PCs
that will do very much more than you can hope to do with javascript.
Unfortunately the program I would like costs about US$ 1800. Also there
are versions you can install on a server, but these also are expensive.
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Feb 1, 2007
I am trying to create an HTML form in which user will enter different items (he wants to purchase) in text fields. One text field is used for one item. Now it is not known in advance how much items the user will purchase so we cannot decide the total text fields required in advance. Is is possible to increase the number of text fields (using JavaScript) one by one if the user requires more fields
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Nov 24, 2007
My website has demo music tracks and a Flash player. I've put the site in a frameset so that music continues to play while the user is browsing around.
The Flash player and menu are in a thin horizontal bar along the top of the page (top frame). I just realised that my nice JS drop-down menus are not displaying because of the frame... is there any way of getting them to extend beyond the frame they're contained in ?? Code:
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Jul 14, 2009
I have this class, (just the signature)
javascript Code:
var parent_child = function(po, ps, co, cs){
var url = 'http://xyz.com/abc/';
var pars = [], childs = {}, tmp;
this.p_added = function(urlFrag){
[Code]....
What i want to do is to create a new class with the above one as the super class, pass in one more variable to the constructor and override the p_added function. I thought of doing something like xpc = new parent_child(); and override the function with xpc.prototype.p_added = function(){}
how to pass in another variable to the constructor and make it private to the new class.
I believe there is a nice and concise way to achieve what i want to, but i can't find it. And the fact that OOP in javascript can be implemented in several different ways doesn't help my cause.
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May 17, 2010
A client is using an analytics tracking script that needs to be updated each time the DOM is modified (ie, an element is added or removed). Basically this script allows the client to track user actions on the site (clicks, mouseovers, etc.) and, if the user is having issues, replay the entire session to help them with their problem. The issue we're running into is that this tracking script takes a cache of the DOM tree on page load, and when the DOM is updated it needs to specifically be notified that there has been a change... or else the script won't be able to see the nodes that have been added/removed.
Assuming all DOM manipulation is done using jQuery functions, is there a way to run some function every time the DOM is manipulated? I've noticed that all the DOM manipulation functions seem to run through the internal $.fn.domManip function, so I was wondering if it's possible to extend or replace this function from another JS file (assuming of course that all the manipulation functions DO in fact run through $.fn.domManip)?
Example (don't take this code seriously, it's more meant to illustrate what I'm trying to do):
var oldDomManip = $.fn.domManip; //Copy the function (I know this isn't right)
$.fn.domManip = function() {
oldDomManip(arguments);
//update the analytics program by calling it's update function here...
}
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Sep 26, 2009
I'm writing a plugin for jQuery for catching 2 succesive keypresses. I'll paste the plugin I wrote below It doesn't work on Opera . The Developer tools of Opera gave no errors and I can't find any problems, it just doesn't work.(I've used Opera 10.0). o it only works on Firefox (tested on 3.0.14). I'm curious if there is a way to find out why it's not working on Opera and to fix it.
[Code]...
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Nov 24, 2009
I was wondering if there are any sites dedicated to ending javascript objects using the prototype property to give them features like trimming string, removing elements of arrays by name, removing duplicates in arrays, etc. Granted I have functions to do this but there's probably a ton of other good ones out there. Most things I've seen are frameworks like JQuery (which is awesome) but it doesn't extend these objects.
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Jan 2, 2011
I'm sure this question has been asked many times before, but I can't seem to get the correct terms to find the answer in Google.I understand basic JavaScript inheritance. However, everything I've read makes the inheritance work something like this:
Code JavaScript:
var ChildClass = new Function();
ChildClass.prototype = new ParentClass();
ChildClass.constructor = ChildClass;
That's fine, but what happens when ParentClass's constructor needs parameters?As an example, look at the following code:
Code JavaScript:
function Furniture(color){
this.color = color;[code)....
How could I "copy" Furniture's constructor into the Chair object? Better yet, how could I copy Furniture's constructor and then add some functionality to it?
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Jan 1, 2011
In the spirit of the season, I wanted to make it snow on my website. So I began digging. Eventually I ended up with a script that moved an image element down the page in a snowflake-like manner. The problem with it was it was dependant on an img element for every flake - simply no poor programming when using an Object Oriented programming language.So I decided I wanted to extend (in Java-speak; most of my programming background is in Java) the in-built Image object. The new object's src variable will lead to an image of the type of flake it is. (I want to be able to have more variance in images than a simple dot.) The new object will have a function that will allow it to move.A separate,unrelated function will control when each flakes move.
I did some more research and read about prototyping on JavaScript Kit and here (http://mckoss.com/jscript/object.htm), but I still cant seem to get this to work. JS Lint says it's bug-free, but Firefox says "move()" is an invalid function. I am presuming the problem lies in my inability to fully grasp how to extend objects in JavaScript.
<html>
<head>
<script type="text/javascript">[code].....
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Oct 21, 2010
I am working wiht this JQuery plug in that now one of my clients wants to turn it into a slideshow feature. I am not that familiar with JQuery plug ins so I wanted to get some input from some of you.
On the header of my html page:
Code:
$(document).bgStretcher({
images: ['1.jpg', '2.jpg', '3.jpg', '4.jpg'],
imageWidth: 1668, imageHeight: 1035, nextSlideDelay: 3000, slideShowSpeed: 4000
});
I was able to add a click handler to trigger the a function on the plugin called loadslide().
Code:
$(document).ready(function ($) {
$('.slideNo').each(function (i) {
$(this).click(function () {
loadSlide(i);
[Code].....
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Feb 10, 2011
Im trying to prevent my unorder list submenu from extending past the viewport.[code]
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Sep 5, 2009
Is there a better way to extend object with internal objects?
$.fn.bestShow = function(s) {
var d = {
width: 0,
height: 0,
order: "numeric",
orderBy: "",
[Code]...
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Jul 1, 2010
What I am trying to do is have a form in a table validate in the same order as the tab order. The form is in a table with three columns. There are a few fields in each column below each other. They are not in separate cells. (Spacing issues when they are in their own cells.) Validation is working correctly, however when it is validating, it validates column by column, not by "row."
Can anyone help me get it to validate in the correct order?
Here is the JavaScript form validator and here is the form with the calls to the script to validate:
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Jul 29, 2010
How can I copy an entire row with, let's say 5 columns, by clicking any of the cell from the row, to a form that has 5 input text...each cell from the row i have clicked must be copied to each input text...?
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Jul 20, 2005
I need to be able to create a 2 column table and then based on which column
header is clicked on, sort the list by that column so that each table row is
sorted properly. If possible there might be more than one line in the row
and I would only want to sort on the first line in a given row. Can this be
done using JavaScript. If so, which entities do I need (A table? A form?)
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Jul 3, 2009
i'm trying to add a row to a table with form elements in the table. It almost works but instead of seeing my text field, i see the code of my text field. Here's my code :
var counter = 1;
function addInput(tableName)
{
var tbody = document.getElementById(tableName).getElementsByTagName("TBODY")[0];
var row = document.createElement("TR");
var td1 = document.createElement("TD");
td1.appendChild(document.createTextNode("<input type='text' name='myInputs[]'>"));
[Code]...
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May 6, 2011
I am trying to submit a form in javascript on clicking 'Button1'.On submission,it will disable the html table 'HTMLTable1' present in it.The code which I am using is as:
function OnButton1_Click ( ) {
var oRows = document.getElementById('HTMLTable1').getElementsByTagName('tr');
var irows = oRows.length ;
[code]...
But On submit,the html table is getting disabled just for a moment then again it becomes active and user can interact with it.
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Apr 1, 2010
I have a lot of tables and to get it to post some of the data into a form.
So say i have a location and a start date and end date, and when i select a radio and click submit the location and dates get put into the corresponding field in the form.
However i have a lot of tables and a lot of different options but want it to go to only one form. this form can be on a seperate page, but was wondering if its possible to get the form to appear on the same page, underneath the table.
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Nov 5, 2010
I have a form in my website that I want to hide at page load. But after the page load, there remains empty space. The form is inside the table. So, I tried resizing table with following code. But its not working.
<script type="text/javascript">
function HideForm()
{
document.getElementById('emf-form').style.visibility='hidden';
document.getElementById('page2').style.height='200px';
}
</script>
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Jul 23, 2005
I have a form on a page that has several textareas, and textboxes
inside a table (so the table containing the textboxes is also inside
the FORM tag).
I want to replace the textareas with simple text instead. But I want
to keep the format of my page EXACTLY the same. However, the problem
is that ...
1) Javascript won't let me create say a one-cell TABLE containing some
text (e.g. textarea's value) and then insertBefore an element in the
form. This is so because the a TABLE element is not compatible to be a
FORM's child.
2) I surely can insert a text node or a table using appendChild or
insertBefore on document.body. However, like I said I must maintain
the formatting of my page, so I again can not do this. Reason being
that the document.body won't have access to anything that's inside the
FORM tag and can only insert before or after the FORM tag.
e.g.
<BODY>
<P id="para1">foo</P>
<FORM id=form1">
<!-- anything in here is Form's property NOT body's -->
<input type="text" name="name" id="txtbox1">
</FORM>
</BODY>
So the following code is invalid:
var tNode = document.createTextNode ("hello");
document.body.insertBefore (tNode,
document.forms[0].getElementsByTagName ("txtbox1"));
because I can't insert a textnode before a form element using a body
method.
And following code is valid but not what I want according to my second
point above:
var tNode = document.createTextNode ("hello");
document.body.appendChild (tNode);
How can I insert a text node or table containing text inside FORM tags?
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Apr 17, 2010
Currently I have this web database app that I wrote in which I have a page with 3 tables. When I want to enter data into the table I currently select the table name from a drop down list and then have a javascript window open containing a form. The form is processed using php and oracle. The parent window which is the page containing the 3 tables then gets reloaded and, behold you can see a row contaiing the data underneath the choosen table. Have a picture in your mind of my setup?
Ok, what I would like is to try and eliminate the popup window. On each of the table headers I would like to have a button that when clicked, adds a row of input cells, say 6 for example . They should be able to have as many rows as they want. I would also like to add a submit button and a remove row button. And that is it.
From there I can handle the input of the multiple rows with php arrays and array splice to get the indexing I want. That is no problem. I have just never done anything dynamic and have very little javascript experience.
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