AJAX :: PHP - Changing A Form Dynamically?
Jun 9, 2010
Instead of implenting a prefabricated calender on my site, I tried a different route. I built a simple form where the user picks time and date. Now, what I need to do is to secure a dynamic changing of the <select> tag carrying the values for days in the month, based on what information the user has put into the <select> tag carrying the values for the month. This should be logical, as it should not be possible to choose ie. the 31st of June, as there's no such date. I hope you understand what I need.
[Code]...
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Sep 6, 2010
One of the links adds a button to the form dynamically (and also removes it).I give the button an onclick event handler that also removes it from the page (basically just setting its parent.innerHTML='')A third link submits the form using a function (for validation perhaps).The third link submits the form successfully, EXCEPT when I have removed the newly created button by clicking on it. In this case the form.submit() is simply ignored although the function is still executed.This is essentially the problem I have: The link fails to submit after using the button to remove itself.If I hide the button using the first link and/or change the button's onclick to do nothing then I can still click it and the form submit succeeds.Here is the test code:
Code:
<html>
<head>
<script type="text/javascript">
[code]...
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Jul 27, 2010
Below is the html and js I have so far to dynamically place form fields on the form when a certain radio button is marked (Fixed hours). Problem is I can't get the fields to go away if the other radio button is marked (Variable hours). Solutions on what code my js needs to remove the fields when the opposite radio button is marked?
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Jun 5, 2009
Currently, I have a php form with various inputs, and a div where I am embedding an (initially) empty open flash chart object.Right now, I am calling a php file on the submit of the form, which takes the form data, calls a python script to process the form data, and then creates an open flash chart object using the data the python script returns.There are a few problems with this:
1. When the submit on the form is called, it goes to a different page where the chart is displayed, when I would really just like to update the contents of the chart div where I initially embedded the empty chart.
2. The processing of the form in the python code can take some time, so what I would really like is to have the chart "check" the output of the python script periodically and update the chart each time, adding the new data points to the old ones.
I know I can do all of these things with javascript and Ajax, I just can't seem to find any tutorials or examples that are exactly what I am looking for.
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Feb 27, 2007
I have a few radio boxes where a user can choose different options and
I want to show an explanation of each option after it's clicked.
Here's what I have:
<script type="text/JavaScript">
function toggle(o){
o.className = ( o.className == "show" ) ? "hide" : "show";
}
'function describetype(){
' if (window.event.srcElement.value == "starter")
typedesc.innerHTML="A Starter request is for a new employee who's
never worked for cadbury or the Bottling Group before.";
' if (window.event.srcElement.value == "leaver")
typedesc.innerHTML="A Leaver request is for an existing employee who's
permanently leaving the company.";
'}
'function starter(){
'typedesc.innerHTML="A Starter request is for a new employee who's
never worked for cadbury or the Bottling Group before.";
'}
'function leaver(){
'typedesc.innerHTML="A Leaver request is for an existing employee
who's permanently leaving the company.";
'}
function describetype(o){
if (o == "starter"){
typedesc.innerHTML="Starters are...etc.";
}
if (o == "leaver"){
typedesc.innerHTML="Leavers are...etc.";
}
}
</script>
The first "toggle" function works fine but the "describetype" won't
work. Here's the HTML:
....
<td class="layout bold">
<input type="radio" name="reqtype" value="starter"
checked="checked" onclick="describetype(starter)"Starter<br>
<input type="radio" name="reqtype" value="leaver"
onclick="describetype(leaver)"Leaver<br />
</td>
<td class="layout bold">
<input type="radio" name="reqtype" value="mover"Mover<br />
<input type="radio" name="reqtype" value="adhoc"Ad Hoc
</td>
....
The error keeps saying that "starter" or "leaver" is undefined. I'm
not much of a javascript guy (mostly the cut and paste variety myself)
but everything I've seen says this should work. No?
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Jul 23, 2005
I have a page with 3 divisions overlaying each other. I dynamically
change the visibility to switch between them. On the Mac version of IE
5.1 I am not able to activate the scroll bars after making a division
visible. Only the originally displayed division works. I am able to
click on the data (option select lists) in all of the divisions. There
is no problem when I use Netscape.
I would like to dynamically change the z-index to see if that would
help. Can someone tell me how?
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Jul 20, 2005
I have a piece of javascript I need to modify. Right now it changes a stylesheet in the document between style.css and no_indent.css. These
are in the head of my document:
<link rel=stylesheet href=/style.css>
<link rel=stylesheet href=/no_indent.css>
<link rel=stylesheet href=/style.css>
What the code below does is toggle between the two depending on what link is clicked. Here are the links:
<a href=javascript:changeSheets(1)>Threaded</a>
<a href=javascript:changeSheets(2)>Flat</a>
What I want to do is have one link that will toggle between the two
stylesheets. So the page loads style.css initially. If the link is
clicked once it changes to no_indent.css. If it's clicked again it
changes back to style.css, and so on.
Can anyone let me know how to do this?
code:
----------------------------------
function changeSheets(whichSheet){
whichSheet=whichSheet-1;
if(document.styleSheets){
var c=document.styleSheets.length;
for(var i=0;i<c;i++){
if(i!=whichSheet){
document.styleSheets[i].disabled=true;
}else{
document.styleSheets[i].disabled=false;
}
}
}
}
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Dec 16, 2003
Is there a way to change the contents of a div block dynamically? Or should I use iframe instead?
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Apr 18, 2007
The following is a very simple example of what I want to do take an
elements oncontextmenu and changing it dynamically onclick of that
same element. The code below will fail unless you change the line
document.getElementById('div1').setAttribute('onco ntextmenu',
someText);
to
document.getElementById('div1').setAttribute('onco ntextmenu',
function(){alert('World World');return false;});
............
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Jul 20, 2005
I'm having a problem dynamically changing the color of a table background.
I'm not sure exactly how to word this, but I'll give an example.
I have a function called greentored(propname)
i want to be able to change the following to a different color:
document.all.propname.style.visibility
but substitute the propname with the variable that I'm sending over.
Here is what I had written before but it did not work, it should be easy to
understand what i'm trying to do:
function greentored(propname) {
changecolor = "document.all." + propname + ".style.background";
changecolor = "green";
}
I understand why this doesn't work because all i'm doing is reasigning
"changecolor" to equal green, rather then setting the property of the first
instance of "changecolor" to green.
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Apr 20, 2010
I have a template that will have tons of different background options. I want people looking at the demo to be able to test out each one without having to reload the page.
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Nov 16, 2010
i'm new to jquery and am not real familiar with javascript. I have a color picker on my page that puts the hex value in an input box. I'm not familiar with jquery or javascript in general. I would like to be able to take the hex value and use it in updating a style of a div onkeyup or onchange...say the border color for example. Something like this...but this isn't working.
<input type="text" id="colorfield1" onFocus="ddcolorposter.echocolor(this, 'colorbox1')"> <div id="colorbox1" class="colorbox"></div>
<br><br>
[code]....
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Apr 19, 2006
Im making a quiz with some javascript and when the user hits submit I want a table cell to display that questions have been missed and to provide a link to the pages that hold the information. Can I do this without using DHTML?
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Mar 16, 2011
I need to select browser option dynamically using javascript for handling cookies , i.e., in need select "override automatic cookie handling" checkbox dynamically. how to select this check.
Tools - -> Internet Options --> Privacy (Tab) --> Advance (Button) --> Override automatic cookie handling .
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Mar 23, 2010
I am building a schedule web page and before I just had it use plain static HTML and CSS to control the styling. I wrote some javascript that goes through the table's rows, then cells (double for loop), and if the cells innerHTML == "" then the style class is changed. I do have some working code, however it only works in IE. Here's a copy of the script:
<script type="text/javascript">
for (var i = 0; i < document.getElementById('table').rows.length; i ++)
for (var j = 0; j < document.getElementById('table').rows(i).cells.length; j ++)
if (document.getElementById('table').rows(i).cells(j).innerHTML == "")
[Code].....
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Feb 17, 2004
I have a drop down box on a site, and when an option is selected, I need the value of a text box to change.
My form has the following in it:
<select name="event">
<option value="" onclick="updateprice(0)">Please Select..</option>
<option value="3" onclick="updateprice(25)">Monday 16th February 2004 (£25 per ticket)</option>
<option value="2" onclick="updateprice(20)">Saturday 28th February 2004 (£20 per ticket)</option>
</select>
and I have this javascript function:
function updateprice(theamount) {
document.nonmember.adminprice.value = theamount
}
the form is called 'nonmember' and the text box i need to change is called 'adminprice'.
Everything works fine in mozilla, but in IE nothing happens when I select an item from the drop down list (not even a javascript error)
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Jun 1, 2010
I have a flash header on my website with 5 menu items (home, register, about us, etc)
myheader.swf?button=1 "Home" is focused
myheader.swf?button=2 "register" is focused
etc etc
When you click on a menu item it becomes the focused menu item (or "button") and the flash fires off a javascript event which handles the AJAX.Using the browser's back/forward buttons, the flash header's focused item does not change.
I can capture the history change, but how can I change the " .swf?button=x " using javascript.
PS: the flash header is a big file and I do not want to reload it every single time to update the var
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Dec 21, 2011
I have an image slideshow that works fine and, I may be being over ambitious but I'd like to combine the Play and Pause buttons so that when the slideshow is playing, the Play button is replaced by the Pause button and when it is paused the Pause button is replaced by the Play button.
Sounds like a simple JavaScipt change image function but both buttons have roll over effects and they both have different JavaScript functions assigned to them so I'm struggling to get my head around what I need to do.
I've highlighted the relevant chunks of code below...
The HTML / CSS...
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Oct 14, 2011
How can I dynamically change the color of values on a page, to show if they are above or below a target value entered in a text box on the page. Those below should be shown in green, those above in red, and identical (equal) should be in amber. Values can be put in a particular tag and then use the getElementsByTagName.
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Dec 21, 2009
I'm currently in the process of making a spreadsheet like webpage and it all working fine... However I have been using setAttribute and removeAttribute in order to dynamically change a table cells onclick property.
This of course does not work in IE7 etc and I've been banging my head against a brick wall trying to come up with a solution that will work in all browsers but I just can't seem to get it to work with using methods such as...
I get all sorts of not implemented, type mismatch errors when I try to use the above.
Below is the setAttribute code which works.
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Sep 9, 2009
I am using PHP & mySql to grab the title and description that I have stored in a table in the DB.
I am trying to dynamically change the <head> <title></title>, as well as <meta name="Description" content="" /> .
I used document.title to change the title. I see the title changing in the browser, but when I click on view source in the browser to see it int he code, the title is empty. How can I also see it in the code?
How do I change the description in the meta tag?
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Dec 18, 2009
I am currently working on a tween script that I am hoping to make so it allows the user to choose and object than the property it tweens, whether it be height or opacity.so currently my problem is getting the function to accept dynamic property selction.for example, the following.
Code:
function tween(object,property,to,time){
original = object+property;
[code]....
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Apr 17, 2011
I'm putting together an events calendar athttp:[URL].. Each event is a li item, and I use jQuery to assign the class "no-left-m" (no left margin) to li:nth-child(3n+1) for CSS layout purposes. I've also added the ability to show only events in certain categories. Unfortunately, the initial jQuery assigns the classes to li items from the DOM, and doesn't take into account the show/hide. This means that when I show only a single category, the margins are off.
[Code]...
how I can assign my classes dynamically to nth-child(3n+1) of *visible* items only?
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Feb 6, 2011
I am building an online survey using a survey creation tool which allows me to incorporate javascript for additional functionality. However, I am new to javascript so would appreciate any help that you could provide me with.
I have question types like agreement scales, where the respondent sees a list of statements and has to rate each one by clicking on a radio button. The source code of the matrix table looks like this:
[Code].....
This code works as intended; however, as you can see, it loops through all the radio buttons when one is clicked. Is there a way to accomplish this without looping through all the radios, and thus make the script run faster?
Also, I have read that the addEventListener function does not work for older versions of IE. Is there a simpler alternative?
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Nov 2, 2011
I'm having trouble changing the font color of my labels ONLY when I stop the form from submitting due to blank fields. I'm not sure whether if just changing my CSS will achieve what I want, or am I going to have to add somethig to my if else statement, or both? I would think I would need to change CSS to :
label.onfocus {
color:red;
}
but a little confused on what else.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
[Code]...
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Oct 13, 2010
I have a grid that I'm adding rows to that include form text input boxes using addRowData. I know I can use the "editable:true" for that but I'd rather not at this time. Anyway I have the <div id=list1></div> surrounded by a <form></form>. Also statically I have a couple of text input boxes and a submit button. When I press the submit button the only parameters that show up in the POSTED data are the static ones. Is there a way to get the form elements "registered" with the form? I know I can always use javascript to extract the data and save it via an ajax call, but if there is a way to do it "correctly"
Example
var myRow = {id:"0",call:"<input name='callt"+boxNo+"' id='call"+boxNo+"' class='calls' type='text'/>",amount:"<input name='amt"+boxNo+"' id='amt"+boxNo+"' type='text' value='"+defaultDep+"'/>",residual:"",calculate:"<input type='button' class='buttons' id='b"+boxNo+"'/>"};
$("#list1").addRowData(boxNo,myRow);
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