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jQuery check the parent checkbox if the child checkbox is checked

I want to make a logic that if a child checkbox is checked, it checks the parent checkbox too. The input can parent, child and both:
<input type="checkbox" name="checkbox[$counter]" class="parent" />
<input type="checkbox" name="checkbox[$counter]" class="child" />
<input type="checkbox" name="checkbox[$counter]" class="parent child" />
This structure:
1
2
3
4
5
6
7
will be look like this:
<table class="table">
<tr>
<td>
<input type="checkbox" name="checkbox[1]" class="parent" />
</td>
<td>
.
.
</tr>
<tr>
<td>
<input type="checkbox" name="checkbox[2]" class="child" />
</td>
<td>
.
.
</tr>
<tr>
<td>
<input type="checkbox" name="checkbox[3]" class="child" />
</td>
<td>
.
.
</tr>
<tr>
<td>
<input type="checkbox" name="checkbox[4]" class="parent" />
</td>
<td>
.
.
</tr>
<tr>
<td>
<input type="checkbox" name="checkbox[5]" class="child parent" />
</td>
<td>
.
.
</tr>
<tr>
<td>
<input type="checkbox" name="checkbox[6]" class="child" />
</td>
<td>
.
.
</tr>
<tr>
<td>
<input type="checkbox" name="checkbox[7]" class="child" />
</td>
<td>
.
.
</tr>
</table>
I want if I check 3, it checks 1 and if I check 6 it checks 5 and 4, too.
Also the checkboxes are in separate table rows, becouse I want to show some information structured in table next to the checkbox.
Can you show me a script what does it? I tried this, but it's not working:
$(document).ready(function() {
$('input.child').change(function() {
if ($(this).is(':checked')) {
$(this).closest('input.parent:checkbox').attr('checked', true);
}
});
});

The checkboxes are not parent-child relationship, thus the method .closest() will not work as it traverse's up starting from itself.
I would recommend you to assign classes with TR element and also attach event handler with them, traversing DOM will be easy.
<tr class="parent">...</tr>
<tr class="child">...</tr>
You could use combination of .prevAll() and .first() to get the targeted TR, then use .find() to get the checkbox.
Additionally, If you want to fire the change event trigger() method can be used.
$(document).ready(function() {
$('.child').on('change', ':checkbox', function() {
if ($(this).is(':checked')) {
var currentRow = $(this).closest('tr');
var targetedRow = currentRow.prevAll('.parent').first();
var targetedCheckbox = targetedRow.find(':checkbox');
targetedCheckbox.prop('checked', true).trigger('change');
}
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table class="table">
<tr class="parent">
<td>
<input type="checkbox" name="checkbox[1]" />
</td>
</tr>
<tr class="child">
<td>
<input type="checkbox" name="checkbox[2]" />
</td>
</tr>
<tr class="child">
<td>
<input type="checkbox" name="checkbox[3]" />
</td>
</tr>
<tr class="parent">
<td>
<input type="checkbox" name="checkbox[4]" />
</td>
</tr>
<tr class="child parent">
<td>
<input type="checkbox" name="checkbox[5]" />
</td>
</tr>
<tr class="child">
<td>
<input type="checkbox" name="checkbox[6]" />
</td>
</tr>
<tr class="child">
<td>
<input type="checkbox" name="checkbox[7]" />
</td>
</tr>
</table>

Try below script,
$(document).on('change', 'input[type=checkbox]', function(e) {
$(this).siblings('ul').find("input[type='checkbox']").prop('checked', this.checked);
$(this).parentsUntil('input[type=checkbox]').children("input[type='checkbox']").prop('checked', this.checked);
e.stopPropagation();
});

With your current html structure you need make a link between childs and parents, for example with data attribute, now it works with any html structure, table, ul li or without these.
$(document).ready(function() {
$('input.child').on('change', function() {
var data = $(this).data('name');
if (this.checked) {
$('input.parent:checkbox[data-name="' + data + '"]').prop('checked', true);
$('input.parent:checkbox[data-parent="' + data + '"]').prop('checked', true);
} else {
$('input.parent:checkbox[data-name="' + data + '"]').prop('checked', false);
$('input.parent:checkbox[data-parent="' + data + '"]').prop('checked', false);
}
});
});
/* Optional, This is what I added for better look */
$('.child').each(function() {
$(this).parent().css({
paddingLeft: 20,
backgroundColor: '#c0c0c0'
});
});
$('.parent').each(function() {
$(this).parent().css({
backgroundColor: 'black'
});
});
td {
border: 1px solid black;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table class="table">
<tr>
<td>
<input type="checkbox" name="checkbox[1]" class="parent" data-name="chck-1" />
</td>
<td>
</tr>
<tr>
<td>
<input type="checkbox" name="checkbox[2]" class="child" data-name="chck-1" />
</td>
<td>
</tr>
<tr>
<td>
<input type="checkbox" name="checkbox[3]" class="child" data-name="chck-1" />
</td>
<td>
</tr>
<tr>
<td>
<input type="checkbox" name="checkbox[4]" class="parent" data-name="chck-2" />
</td>
<td>
</tr>
<tr>
<td>
<input type="checkbox" name="checkbox[5]" class="child parent" data-name="chck-2" data-parent="chck-3" />
</td>
<td>
</tr>
<tr>
<td>
<input type="checkbox" name="checkbox[6]" class="child" data-name="chck-3" />
</td>
<td>
</tr>
<tr>
<td>
<input type="checkbox" name="checkbox[7]" class="child" data-name="chck-3" />
</td>
<td>
</tr>
</table>

Reveal fields if needed

I'm trying to make a contact-form in php. You can find it here.
I try to make the textbox with datepicker invisible until the visitor checks the radiobutton "ja", only then it needs to be visible.
Here's the code for the form:
var FormStuff = {
init: function() {
this.applyConditionalRequired();
this.bindUIActions();
},
bindUIActions: function() {
$("input[type='radio'], input[type='checkbox']").on("change", this.applyConditionalRequired);
},
applyConditionalRequired: function() {
$(".require-if-active").each(function() {
var el = $(this);
if ($(el.data("require-pair")).is(":checked")) {
el.prop("required", true);
} else {
el.prop("required", false);
}
});
}
};
FormStuff.init();
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<form method="post" action="mail.php">
<!--< ?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>-->
<table id="contactForm">
<tr>
<th colspan="2">Contact</th>
</tr>
<div>
<tr>
<td><label>Reservatie: </label></td>
<td>
<table>
<tr>
<td id="nospacing"><input type="radio" name="reservatie" value="Ja" id="ja"></td>
<td id="nospacing"><label for="reservatie">Ja</label></td>
<td id="nospacing"><input type="radio" name="reservatie" value="Nee" id="nee"></td>
<td id="nospacing"><label for="reservatie">Nee</label></td>
</tr>
</table>
</td>
</tr>
<div class="reveal-if-active">
<tr>
<td><label for="reservering">Reserveringsdatum: </label></td>
<td><input type="text" id="reservering" autocomplete="off" name="reservering" class="require-if-active" data-require-pair="#ja"></td>
</tr>
</div>
</div>
<tr>
<td><input type="submit" name="submit" value="Verzenden" /></td>
<td><input type="reset" value="Formulier wissen" class="alt" /></td>
</tr>
</table>
</form>

you use $('input[type="radio"]').click(function(){}) to detect you input change see code snippet.
var FormStuff = {
init: function() {
this.applyConditionalRequired();
this.bindUIActions();
},
bindUIActions: function() {
$("input[type='radio'], input[type='checkbox']").on("change", this.applyConditionalRequired);
},
applyConditionalRequired: function() {
$(".require-if-active").each(function() {
var el = $(this);
if ($(el.data("require-pair")).is(":checked")) {
el.prop("required", true);
} else {
el.prop("required", false);
}
});
}
};
FormStuff.init();
/* this is the function to handle you need */
$(function(){
$('input[type="radio"]').click(function(){
if ($('input[type="radio"]#ja').is(':checked'))
{
$(".reveal-if-active").show();
}
else if('input[type="radio"]#nee'){
$(".reveal-if-active").hide();
}
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<form method="post" action="mail.php">
<!--< ?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>-->
<table id="contactForm">
<tr>
<th colspan="2">Contact</th>
</tr>
<div>
<tr>
<td><label>Reservatie: </label></td>
<td>
<table>
<tr>
<td id="nospacing"><input type="radio" name="reservatie" value="Ja" id="ja"></td>
<td id="nospacing"><label for="reservatie">Ja</label></td>
<td id="nospacing"><input type="radio" name="reservatie" value="Nee" id="nee"></td>
<td id="nospacing"><label for="reservatie">Nee</label></td>
</tr>
</table>
</td>
</tr>
<div >
<!-- make the tr the element to hide and show -->
<tr class="reveal-if-active" style="display:none">
<td ><label for="reservering">Reserveringsdatum: </label></td>
<td><input type="text" id="reservering" autocomplete="off" name="reservering" class="require-if-active" data-require-pair="#ja"></td>
</tr>
</div>
</div>
<tr>
<td><input type="submit" name="submit" value="Verzenden" /></td>
<td><input type="reset" value="Formulier wissen" class="alt" /></td>
</tr>
</table>
</form>

Firstly, your markup is kinda messed up:
You shouldn't mix div tags with tr, only tr tags should be present on the same 'level' of nesting in table tag
Secondly, answering you actual question - add click event listeners on the radiobuttons, so that when YES is clicked, you make visible your "reveal-if-active" row:
var inputToHide = document.getElementsByClassName("reveal-if-active")[0];
var jaInput = document.getElementById("ja");
var neeInput = document.getElementById("nee");
function makeInputVisibleAgain() {
inputToHide.style.display = "block";
}
function hideInput() {
inputToHide.style.display = "none";
}
jaInput.addEventListener("click", makeInputVisibleAgain);
neeInput.addEventListener("click", hideInput);
Thirdly - don't use several ids with same name, better change your id="nospacing" to class

It is possible that you want something like this? Notice that it's very easy to do it in very few lines of code. Since you're a beginner I'll explain:
$( ... ); is jQuery's way to say "when the page is totally loaded, start executing what's inside". In case you didn't know, without this the scripts would start executing any time and could cause errors, mainly because of not finding the elements you work with.
$('input[name="reservatie"]').change(function(){ ... });: the radio buttons have name "reservatie", so when they are changed it will execute the function inside change().
$('#reveal').prop('hidden', !$('#ja').prop('checked'));: I identified the row of the table where the datepicker was as "reveal", because, maybe I'm wrong, but putting one row of it inside of a div didn't let my code go well, so I believe that was just wrong. I deleted the div and used the row instead. So, its attribute hidden will be the opposite of the checked property of "ja", which means, if "ja" is checked, the datepicker won't be hidden, and if it's not, it will.
Hope it helps you.
$(function(){
$('input[name="reservatie"]').change(function(){
$('#reveal').prop('hidden', !$('#ja').prop('checked'));
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<form method="post" action="mail.php">
<!--< ?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>-->
<table id="contactForm">
<tr>
<th colspan="2">Contact</th>
</tr>
<div>
<tr>
<td><label>Reservatie: </label></td>
<td>
<table>
<tr>
<td id="nospacing"><input type="radio" name="reservatie" value="Ja" id="ja"></td>
<td id="nospacing"><label for="reservatie">Ja</label></td>
<td id="nospacing"><input type="radio" name="reservatie" value="Nee" id="nee"></td>
<td id="nospacing"><label for="reservatie">Nee</label></td>
</tr>
</table>
</td>
</tr>
<tr id="reveal" hidden>
<td><label for="reservering">Reserveringsdatum: </label></td>
<td><input type="text" id="reservering" autocomplete="off" name="reservering" class="require-if-active" data-require-pair="#ja"></td>
</tr>
</div>
<tr>
<td><input type="submit" name="submit" value="Verzenden" /></td>
<td><input type="reset" value="Formulier wissen" class="alt" /></td>
</tr>
</table>
</form>

Change background Color for group radio inputs

Problem I have a form that the user fills out (basic things like your name, phone number, email, etc). It has a question that asks the user if you want your suggestion to remain anonymous and the user either selects yes or no.
The following image is what I am talking about:
If the user does not select either of the selections and submits the form, a alert box appears notifying the user to select one.
I am able to color a single radio selection red if the user has not selected either of them. I am able to color both radio selections red like the following:
And here is the function that checks whether or not either of those radio buttons have been selected:
myOption = -1;
for ( i=0; i < SubmitIdea.Anonymous.length; i++ ) {
if ( SubmitIdea.Anonymous[i].checked ) {
myOption = i;
}
}
if ( myOption == -1 ) {
alert( "Do you wish to remain anonymous?" );
SubmitIdea.Anonymous[0].focus();
SubmitIdea.Anonymous[0].style.backgroundColor = "red";
SubmitIdea.Anonymous[1].focus();
SubmitIdea.Anonymous[1].style.backgroundColor = "red";
return false;
}
However, I would like the rectangular background border surrounding both the Yes and No radio selection, not individually. This rectangular border will only occur if neither radio selection has been choosen when the user has submitted their results.
The following is the html:
<form name="SubmitIdea" method="POST" class="h">
<table Border="0" align="center">
<tr>
<td colspan="5"> </td>
</tr>
<cfoutput>
<tr>
<td class="m">Name: </font></td>
<td nowrap="nowrap" class="r">
<input type="text" name="Name" value="" class="a" maxlength="32">
</td>
<td width="50"> </td>
<td class="mm">Today's Date: </font></td>
<td class="mm">#TodaysDt#</td></tr>
</tr>
<tr>
<td class="mm">Department: </font></td>
<td nowrap="nowrap" class="r">
<input type="text" name="Department" value="" class="a" maxlength="32">
</td>
<td width="50"> </td>
<td class="mm">Supervisor Name: </font></td>
<td nowrap="nowrap" class="r">
<input type="text" name="Supervisor" value="" class="a" maxlength="32">
</tr>
<tr>
<td class="mm">Email: </font></td>
<td nowrap="nowrap" class="r">
<input type="text" name="NomEmail" value="" class="a" maxlength="32" size="25"> <br />
</td>
<td width="50"> </td>
<td class="mm">Phone: </font></td>
<td nowrap="nowrap" class="r">
<input type="text" name="Phone" value="" class="a" maxlength="32">
</tr>
</table>
<table border="0" width="500" align="center">
<tr>
<td class="c" align="center">
Your name will be shared and published along with your suggestion unless you want to remain anonymous. Do you wish to remain anonymous? <input type="radio" name="Anonymous" value="Yes"> <strong>Yes</strong> <input type="radio" value="No" name="Anonymous"> <strong>No</strong>
</td>
</tr>
</table>
</cfoutput>
<table border="0" align="center">
<tr>
<td colspan="5" class="r"><strong>Please provide a brief summary of your idea:</strong></td>
</tr>
</table>
<table border="0" align="center">
<tr>
<td colspan="5"></td>
</tr>
<tr>
<td colspan="5">
<textarea name="reason" id="textarea1" cols="6" maxlength="500" class="c"
style="background-color: transparent; color:##000000; font-size:14px;"
onFocus="clearTxt(this)" onkeydown="limitTxtArea(this); cntTxt(this, 500, 'cnt');" onkeyup="limitTxtArea(this); cntTxt(this, 500, 'cnt');"></textarea>
<span id="cnt" style="color:##FF0000">500</span> character(s) remaining.<br /></td>
</tr>
<tr>
<td colspan="5"> </td>
</tr>
</table>
<table border="0" align="center">
<tr>
<td colspan="5" class="r"><strong>I believe this suggestion will: (check all that apply)</strong></td>
</tr>
</table>
<table border="0" align="center">
<tr>
<td class="e"><input type="checkbox" name="Sugg1" value="Improve Productivity/Quality">Improve Productivity/Quality </font></td>
<td colspan="4"> </td>
<td class="e"><input type="checkbox" name="Sugg2" value="Improve Process">Improve Process </font></td>
</tr>
<tr>
<td class="e"><input type="checkbox" name="Sugg3" value="Increase Revenue">Increase Revenue </font></td>
<td colspan="4"> </td>
<td class="e"><input type="checkbox" name="Sugg4" value="Decrease Expenses/Costs">Decrease Expenses/Costs </font></td>
</tr>
<tr>
<td class="e"><input type="checkbox" name="Sugg5" value="Improve safety in the workplace">Improve safety in the workplace </font></td>
<td colspan="4"> </td>
<td class="e"><input type="checkbox" name="Sugg6" value="Improve Customer Service">Improve Customer Service </font></td>
</tr>
<tr>
<td class="e"><input type="checkbox" name="Sugg7" value="Enhance employee satisfaction / corporate culture">Enhance employee satisfaction/<br>corporate culture </font></td>
<td colspan="4"> </td>
<td class="e"><input type="checkbox" name="Sugg0" value="Other">Other <input type="text" name="OtherSuggest" value="" class="a" maxlength="32"></font></td>
</tr>
</table>
<table border="0" align="center">
<tr>
<td colspan="5" class="r"><strong>Possible challenges to implementation:</strong></td>
</tr>
</table>
<table border="0" align="center">
<tr>
<td colspan="5">
<textarea name="reasontwo" id="textarea2" cols="6" maxlength="500" class="c"
style="background-color: transparent; color:##000000; font-size:14px;"
onFocus="clearTxtTwo(this)" onkeydown="limitTxtAreaTwo(this); cntTxtTwo(this, 500, 'cnttwo');" onkeyup="limitTxtAreaTwo(this); cntTxtTwo(this, 500, 'cnttwo');"></textarea>
<span id="cnttwo" style="color:##FF0000">500</span> character(s) remaining.<br /></td>
</tr>
<tr>
<td colspan="5"> </td>
</tr>
</table>
<table border="0" align="center">
<tr>
<td colspan="5" class="r"><strong>What metrics could be used to track results?</strong></td>
</tr>
</table>
<table border="0" align="center">
<tr>
<td colspan="5">
<textarea name="reasonthree" id="textarea3" cols="6" maxlength="500" class="c"
style="background-color: transparent; color:##000000; font-size:14px;"
onFocus="clearTxtThree(this)" onkeydown="limitTxtAreaThree(this); cntTxtThree(this, 500, 'cntthree');" onkeyup="limitTxtAreaThree(this); cntTxtThree(this, 500, 'cntthree');"></textarea>
<span id="cntthree" style="color:##FF0000">500</span> character(s) remaining.<br /><br /></td>
</tr>
</table>
<br />
<table align="center">
<TR>
<TD align="center"><input type="button" value=" Submit " onClick="SubmitMe()" name="SubmitIdeaBtn" style="font-size:14px; font-family:Arial, Helvetica, sans-serif">
</td>
</tr>
</table>
</form>
Thank You
UPDATE
The following is what I did:
document.addEventListener("DOMContentLoaded", function(event) {
document.addEventListener("click", function(clickEvent) {
if (clickEvent.target.id == 'check') {
var anonymousInputs = document.getElementsByName('Anonymous');
var anonymousContainer = document.getElementById('anonymousContainer');
var anonymousSelected = Array.prototype.find.call(anonymousInputs,function(radioInput) {return radioInput.checked;});
if (anonymousSelected) {
anonymousContainer.className = '';
}
else {
if (anonymousContainer) {
alert( "Do you wish to remain anonymous?" );
anonymousContainer.className += 'borderedContainer';
}
}
}
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<table border="0" width="500" align="center">
<tr>
<td class="c" align="center">
<div>
Your name will be shared and published along with your suggestion unless you want to remain anonymous. Do you wish to remain anonymous? <span id="anonymousContainer"><input type="radio" name="Anonymous" value="Yes"> <strong>Yes</strong>
<input type="radio" value="No" name="Anonymous">
<strong>No</strong>
</span>
</div>
</td>
</tr>
</table>
<table align="center">
<TR>
<TD align="center"><input id="check" type="button" value=" Submit " onClick="SubmitMe()" name="SubmitIdeaBtn" style="font-size:14px; font-family:Arial, Helvetica, sans-serif">
</td>
</tr>
</table>
So I am not sure what I am doing wrong.

You can put the radio buttons in a container (e.g. a span) and then set the border on the container. See the example below, after clicking the button labeled check.
The snippet uses the hex value for red but feel free to adjust to a different value. Using 'red' as the value may produce varying results across browsers/Operating systems. For more information, refer to the MDN color page.
The snippet also uses Array.find() to determine if any of the radio inputs are checked.
Note:
I originally utilized document.addEventListener() for event delegation and to wait until the DOM was loaded but the OP is using IE 8 or earlier and had issues with that, so I removed that code.
function checkAnonymousSelected(clickEvent) {
var anonymousInputs = document.getElementsByName('Anonymous');
var anonymousContainer = document.getElementById('anonymousContainer');
var anonymousSelected = Array.prototype.find.call(anonymousInputs, function(radioInput) {
return radioInput.checked;
});
if (anonymousSelected) {
anonymousContainer.className = '';
} else {
if (anonymousContainer) {
anonymousContainer.className += 'borderedContainer';
}
}
}
//support IE 8- for OP so do this instead of using document.attachEventListener
//to wait until the DOM is ready and attach event listeners to the buttons...
document.getElementById('check').onclick = checkAnonymousSelected;
document.getElementById('anonymousYes').onclick = checkAnonymousSelected;
document.getElementById('anonymousNo').onclick = checkAnonymousSelected;
.borderedContainer {
border: 3px solid #ff0000;
}
<div>
Your name will be shared and published along with your suggestion unless you want to remain anonymous. Do you wish to remain anonymous? <span id="anonymousContainer"><input type="radio" name="Anonymous" value="Yes" id="anonymousYes" > <strong>Yes</strong>
<input type="radio" value="No" name="Anonymous" id="anonymousNo" >
<strong>No</strong>
</span>
</div>
<button id="check">check</button>

Scroll to the top of a scrollable pop div atomaticaly using jquery

First thing first, I am having a popup div, which contains a form
Here's is my div
<div class="addnewrule" id="add_message_0">
<form method="post" action="" id="frmadd">
<input type="hidden" name="filter" value="1">
<input name="rule_id" type="hidden" value="0">
<table class="table-responsive" width="100%" border="0" cellspacing="0" cellpadding="10" id="" style="text-align:center; margin-top:0px;">
<tr>
<td colspan="2" align="left"><div id="display_msg_0"></div></td>
</tr>
<tr>
<td width="40%" align="left">Name:</td>
<td width="60%" align="left"><input class="input_field" name="rule_name" type="text"></td>
</tr>
<tr>
<td align="left">Type:</td>
<td align="center">
<input type="radio" name="rule_type" value="0" style="display:none;" />
<input type="radio" name="rule_type" value="1" checked="checked" style="display:none;" />
<div class="btn-group equal_btn">
<button id="block_click" class="btn btn-default" type="button" onclick="setRules(0);">Block Clicks</button>
<button id="filter_click" class="btn btn-default active" type="button" onclick="setRules(1);">Filter Clicks</button>
</div></td>
</tr>
<tr>
<td align="left">Rule Active:</td>
<td align="center">
<input type="radio" id="active_0" name="active" value="1" checked="checked" style="display:none;" />
<input type="radio" id="inactive_0" name="active" value="0" style="display:none;" />
<div class="btn-group">
<button type="button" id="status_enb_0" class="btn btn-default active_btn active" onclick="setruleStatus(0,1);">Enable</button>
<button type="button" id="status_dis_0" class="btn btn-default inactive_btn" onclick="setruleStatus(0,0);">Disable</button>
</div></td>
</tr>
<tr>
<td align="left">Campaign ID:</td>
<td align="left"><input class="input_field" name="camp_id" type="text" /></td>
</tr>
<tr>
<td align="left" id="rRange">Filter IP Ranges:</td>
<td align="left"><table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td style="padding:0;" width="45%"><input class="input_field" name="start_ip" type="text" /></td>
<td width="10%" align="center">To</td>
<td style="padding:0;" width="45%" align="right"><input class="input_field" name="end_ip" type="text" /></td>
</tr>
</table></td>
</tr>
<tr>
<td align="left" id="rUAs">Filter users agents that contains:</td>
<td align="left"><input class="input_field" name="user_agent" type="text" /></td>
</tr>
<tr>
<td align="left" id="rRefs">Filter referers that contains:</td>
<td align="left"><input class="input_field" name="referer" type="text" /></td>
</tr>
<tr id="rUrl" style="display:none;">
<td align="left">Send Blocked Clicks to:</td>
<td align="left"><input class="input_field" type="text" id="rule_url" name="rule_url" value="" /></td>
</tr>
<tr>
<td align="left" colspan="2"><table class="copypaste" width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td>Apply <a href="javascript:void(0)" class="btn orange_button tab2" onclick="cancel_popup('add_new_rule')" >Cancel</a></td>
</tr>
</table></td>
</tr>
</table>
</form>
</div>
Now, here is the jquery ajax function given below.. It checks for the validation and displays the validation message in a message div...
function submitRule(frmId,rule_id)
{
var data=$('#'+frmId).serializeArray();
$.ajax({
type:'POST',
url:'ajax/rule_update_process.php',
data: data,
dataType:'json',
success:function(jData)
{
if(jData.status==1)
{
$("#display_msg_"+rule_id).html(jData.error);
$("#display_msg_"+rule_id).addClass('error');
var child_div = $("#display_msg_"+rule_id);
var parent_div = $("#add_message_"+rule_id);
parent_div.scrollTop(parent_div.scrollTop() + child_div.position().top);
}
else
{
window.location.href='settings_rules.php';
}
}
});
}
Since the popup is a scrollable div, i want to scroll(only within the popup div) to the top so that i can show the message div with the error message..
here'sw how i am getting the screens,.
I used this piece if code to scroll to the top of the popup div to show the error message div,
but this piece of code doesn't seem to work..
What am i doing wrong??
$("#display_msg_"+rule_id).html(jData.error);
$("#display_msg_"+rule_id).addClass('error');
var child_div = $("#display_msg_"+rule_id);
var parent_div = $("#add_message_"+rule_id);
parent_div.scrollTop(parent_div.scrollTop() + child_div.position().top);

replace ur last line of code with this
parent_div.scrollTop(0,0);

I will suggest a very simple apprach:
$("#apply_button").click(function () {
var error_message = $("#your_error_message").css("display");
if (error_message != "none") {
$("#add_message_0").scrollTop(0);
};
});
Code speaks for itself.
BR

You can use css only brother. Example this is your form.
<div>
<form class="has-error">
<p>error</p>
<input name="" value="">
</form>
<div>
you can use the class .has-error to set a css codes. your css codes will only use if the error message is displayed.
div{ overflow-y: scroll; }
div .has-error{ height: 400px; }
height will defend your current section height with errors message.
Something like this on fiddle demo
if the message is not visible on button click, add this to your click function code
$( '#add_message_1' ).delay( 200 ).animate({scrollTop: 0 }, 300);}

Replace text based on submit

What I am trying to do is to dynamically replace the corresponding text with the string from input field.(field1>field11, field2>field22)
http://jsfiddle.net/c2CUE/3/
Can you give me any clue on how to do it in jquery?
<table>
<tr>
<td><h2>Field 1</h2>
<input type="text" name="field1" value="qwerty" class="field1"></td>
<td><span class="field11">asdasd</span></td>
</tr>
<tr>
<td><h2>Field 1</h2>
<input type="text" name="field2" value="qwerty"></td>
<td><span class="field22">asdasd</span></td>
</tr>
</table>

this should do the trick
$(document).ready(function () {
$("input.field1").on("keyup",function () {
$("span.field11").html($(this).val());
});
});
or in live
http://jsfiddle.net/u8EB9/
you could also hook the function to the "change" event but than youll get your text only updated, after you left the input!
this depends on your needs!

Try this:
<form id="form" method="post">
<table>
<tr>
<td><h2>Field 1</h2>
<input type="text" name="field1" value="qwerty" class="field1"></td>
<td><span class="field11">asdasd</span></td>
</tr>
<tr>
<td><h2>Field 1</h2>
<input type="text" name="field2" value="qwerty"></td>
<td><span class="field22">asdasd</span></td>
</tr>
</table>
</form>
and jquery:
$(document).ready(function(){
$('#form').submit(function(e){
e.preventDefault();
$('.field11').html($('.field1').val());
$('.field22').html($('.field2').val());
});
}

if your intention is to use this code multiple times it might be better to use classs rather than id's to stop you needing to create a bunch of bind events.
html:
<table>
<tr>
<td>
<h2>Field 1</h2>
<input type="text" name="field1" value="qwerty" class="replacer" />
<input type="button" class="replace" value="replace" />
</td>
<td>
<span class="replacee field11">asdasd</span>
</td>
</tr>
<tr>
<td>
<h2>Field 1</h2>
<input type="text" class="replacer" name="field2" value="qwerty" />
<input type="button" class="replace" value="replace" />
</td>
<td>
<span class="replacee field22">asdasd</span>
</td>
</tr>
</table>
JS:
$('.replace').on('click', function(){
var parentRow = $(this).closest('tr');
parentRow.find('.replacee').text(parentRow.find('.replacer').val());
});
http://jsfiddle.net/c2CUE/4/

HTML:
<table>
<tr>
<td><h2>Field 1</h2>
<input type="text" name="field1" value="qwerty" class="field1"></td>
<td><span class="field11">asdasd</span></td>
</tr>
<tr>
<td><h2>Field 1</h2>
<input type="text" name="field2" value="qwerty"></td>
<td><span class="field22">asdasd</span></td>
</tr>
</table>
JQuery:
$("input[type='text']").on("keyup",function () {
$(this).parent().next().find('span').html($(this).val());
});
Demo:
http://jsfiddle.net/F74ec/