We Keep Coding

When TR is clicked, then check the checkbox

When I click it for the first time, it click, but doesn't turn off...
I've tried this one, it checked and uncheck but only once.
This one doesn't work for me either.
$(document).ready(function() {
$("tr").click(function() {
var checkbox = $(this).find("input[type=checkbox]");
if (!checkbox.prop("checked", "")) {
checkbox.prop("checked", "false");
} else {
checkbox.prop("checked", "true");
}
});
});
td{
background:red;
padding:10px 40px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<tr>
<td>
<input type="checkbox" />
</td>
<td>test</td>
</tr>
</table>

Here is a toggle
$(document).ready(function() {
$("tr").on("click", function(e) {
const $target = $(e.target)
const $checkbox = $(this).find("input[type=checkbox]");
// only run code when NOT clicking checkbox
if (!$checkbox.is($target)) {
let checked = $checkbox.is(":checked")
$checkbox.prop("checked", !checked)
}
});
});
td {
background: red;
padding: 10px 40px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<tr>
<td>
<input type="checkbox" />
</td>
<td>test</td>
</tr>
</table>

Cannot read property 'childNodes' checkbox to get value from same row

Below code should get me the value of the column next to the checked box in the table, but, once the button is clicked, I am getting:
Cannot read property childNodes of null
Note: database from firebase which where the values from the table come from
Table image :
rootRefReAgents.on("child_added", snap => {
var AgentName = snap.child("Name").val();
$("#table_body_Test").append("<tr><td>" + AgentName + "</td><td><INPUT TYPE=\"Checkbox\"> </Input></td></tr>");
});
}
function ActionData(){
let agents = [];
let table = document.getElementById("table_body_Test");
let childNodes = Array.from(table.childNodes);
// let childNodes = table.childNodes;
for (let child of childNodes.values()) {
console.log(`child: ${child}`);
if (child.constructor.name !== "HTMLTableRowElement") {
continue;
}
let agent = child.childNodes.item(1).innerHTML;
console.log(`agent: ${agent}`);
let checkbox = child.childNodes.item(3).childNodes.item(1);
console.log(`checkbox: ${checkbox}`);
console.log(checkbox.checked);
if (checkbox.checked) {
agents.push(agent);
}
}
console.log(`agents: ${agents}`);
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table id="testTable" align="center">
<thead>
<tr style="color: #D2002E; background: #FFCC01; height:32px;">
<td>Agents</td>
<td>Select</td>
</tr>
</thead>
<tbody id="table_body_Test">
</tbody>
</table>
<button id="submitBtn" onclick="ActionData()">Next</button>

ES6 brought new methods that simplify the code and its reading
const tableBody = document.querySelector('#testTable tbody' );
document.querySelector('#submitBtn').onclick=()=>
{
let agents = [];
console.clear();
for (let rowX of tableBody.rows )
{
let
agent = rowX.cells[0].textContent,
checkbox = rowX.cells[1].querySelector('input[type=checkbox]')
;
console.log( 'agent:', agent, 'checked:', checkbox.checked);
if (checkbox.checked) { agents.push(agent); }
}
console.log( 'agents (array):', agents.join(' / '));
}
/// bonus info :
/*
rootRefReAgents.on("child_added", snap=>{
let
newRow = tableBody.insertRow(-1);
newRow.insertCell(0).textContent = snap.child("Name").val();
newRow.insertCell(1).innerHTML = '<input type="Checkbox">';
});
*/
#testTable { margin: auto; border-collapse: collapse }
#testTable thead tr {
color: #D2002E;
background: #FFCC01;
height:32px;
font-weight: bold;
}
#testTable tr:nth-child(even) {background-color: lightgrey }
#testTable td { border:1px solid grey; padding: 0 20px; }
#testTable td:nth-child(2) { text-align: center }
<table id="testTable">
<thead>
<tr> <td>Agents</td> <td>Select</td> </tr>
</thead>
<tbody>
<tr> <td>AMC</td> <td> <input type="checkbox" > </td> </tr>
<tr> <td>Mygulfex</td> <td> <input type="checkbox" > </td> </tr>
<tr> <td>topStar</td> <td> <input type="checkbox" > </td> </tr>
<tr> <td>WMC</td> <td> <input type="checkbox" > </td> </tr>
</tbody>
</table>
<button id="submitBtn" >see Selects in console</button>

How to add a click event row that can go to next page by id?

Here, the coding that I got from the Stack Overflow page. The window.location should go to next page by id, but I do not know how to code it.
function addRowHandlers() {
var table = document.getElementById("employee-click");
var rows = table.getElementsByTagName("tr");
for (i = 0; i < rows.length; i++) {
var currentRow = table.rows[i];
var createClickHandler =
function(row) {
return function() {
var cell = row.getElementsByTagName("td")[0];
var id = cell.innerHTML;
window.location.href = "detail.php";
};
};
currentRow.onclick = createClickHandler(currentRow);
}
}
}
This is my html code. Would you help me with this code?
<!DOCTYPE html>
<html>
<title>Data Biodata</title>
<head>
<meta name="author" content="Arkaprava majumder" />
<link rel="stylesheet" type="text/css" href="//cdn.datatables.net/1.10.16/css/jquery.dataTables.min.css">
<link rel="stylesheet" href="https://code.jquery.com/ui/1.11.4/themes/smoothness/jquery-ui.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script type="text/javascript" language="javascript" src="//cdn.datatables.net/1.10.16/js/jquery.dataTables.min.js"></script>
<script src="http://code.jquery.com/ui/1.11.4/jquery-ui.js"></script>
<script type="text/javascript" language="javascript">
$(document).ready(function() {
var dataTable = $('#employee-grid').DataTable({
processing: true,
serverSide: true,
ajax: "dataBiodata.php", // json datasource
});
$("#employee-grid_filter").css("display", "none"); // hiding global search box
$('.employee-search-input').on('keyup click change', function() {
var i = $(this).attr('id'); // getting column index
var v = $(this).val(); // getting search input value
dataTable.columns(i).search(v).draw();
});
});
function addRowHandlers() {
var table = document.getElementById("employee-click");
var rows = table.getElementsByTagName("tr");
for (i = 0; i < rows.length; i++) {
var currentRow = table.rows[i];
var createClickHandler =
function(row) {
return function() {
var cell = row.getElementsByTagName("td")[0];
var id = cell.innerHTML;
window.location.href = "detail.php";
};
};
currentRow.onclick = createClickHandler(currentRow);
}
}
</script>
<style>
div.container {
max-width: 980px;
margin: 0 auto;
cursor: pointer;
}
div.header {
margin: 0 auto;
max-width: 980px;
}
body {
background: #f7f7f7;
color: #333;
}
.employee-search-input {
width: 100%;
}
</style>
</head>
<body onload="addRowHandlers()">
<div class="header">
<h1>Data Biodata</h1>
</div>
<div class="container">
<!-- <center> <button style="right:150"> Create New</button></center>-->
<table id="employee-grid" class="display" cellpadding="5" cellspacing="1" width="100%" border="1" style="text-align: justify;">
<thead>
<tr>
<th>No</th>
<th>Year</th>
<th>System</th>
<th>Courses</th>
<th>SVC No</th>
<th>Pangkat</th>
<th>Name</th>
</tr>
</thead>
<thead>
<tr>
<td><input type="text" id="0" class="employee-search-input"></td>
<td><input type="text" id="1" class="employee-search-input"></td>
<td><input type="text" id="2" class="employee-search-input"></td>
<td><input type="text" id="3" class="employee-search-input"></td>
<td><input type="text" id="4" class="employee-search-input"></td>
<td><input type="text" id="5" class="employee-search-input"></td>
<td><input type="text" id="6" class="employee-search-input"></td>
</tr>
</thead>
<tbody id="employee-click">
<tr>
<th>No</th>
<th>Year</th>
<th>System</th>
<th>Courses</th>
<th>SVC No</th>
<th>Pangkat</th>
<th>Name</th>
</tr>
</tbody>
</table>
</div>
</body>
</html>

I dont know which id you mean for redirecting. But I think you should change your addRowHandlers function to this. Obtain and use your mentioned id and use it after alert.
function addRowHandlers() {
var tbody = $("#employee-click tr"); //document.getElementById("employee-click");
tbody.each(function() {
$(this).on('click', function() {
alert("hi");;
// window.location.href = "";
})
})
}
final code is
$(document).ready(function() {
var dataTable = $("#employee-grid").DataTable({
processing: true,
serverSide: true,
ajax: "dataBiodata.php" // json datasource
});
$("#employee-grid_filter").css("display", "none"); // hiding global search box
$(".employee-search-input").on("keyup click change", function() {
var i = $(this).attr("id"); // getting column index
var v = $(this).val(); // getting search input value
dataTable
.columns(i)
.search(v)
.draw();
});
});
function addRowHandlers() {
var tbody = $("#employee-click tr"); //document.getElementById("employee-click");
tbody.each(function() {
$(this).on('click', function() {
alert("hi");;
// window.location.href = "";
})
})
}
div.container {
max-width: 980px;
margin: 0 auto;
cursor: pointer;
}
div.header {
margin: 0 auto;
max-width: 980px;
}
body {
background: #f7f7f7;
color: #333;
}
.employee-search-input {
width: 100%;
}
<html>
<title>Data Biodata</title>
<head>
<meta name="author" content="Arkaprava majumder" />
<link rel="stylesheet" type="text/css" href="//cdn.datatables.net/1.10.16/css/jquery.dataTables.min.css">
<link rel="stylesheet" href="https://code.jquery.com/ui/1.11.4/themes/smoothness/jquery-ui.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script type="text/javascript" language="javascript" src="//cdn.datatables.net/1.10.16/js/jquery.dataTables.min.js"></script>
<script src="http://code.jquery.com/ui/1.11.4/jquery-ui.js"></script>
</head>
<body onload="addRowHandlers()">
<div class="header">
<h1>Data Biodata</h1>
</div>
<div class="container">
<!-- <center> <button style="right:150"> Create New</button></center>-->
<table id="employee-grid" class="display" cellpadding="5" cellspacing="1" width="100%" border="1" style="text-align: justify;">
<thead>
<tr>
<th>No</th>
<th>Year</th>
<th>System</th>
<th>Courses</th>
<th>SVC No</th>
<th>Pangkat</th>
<th>Name</th>
</tr>
</thead>
<thead>
<tr>
<td><input type="text" id="0" class="employee-search-input"></td>
<td><input type="text" id="1" class="employee-search-input"></td>
<td><input type="text" id="2" class="employee-search-input"></td>
<td><input type="text" id="3" class="employee-search-input"></td>
<td><input type="text" id="4" class="employee-search-input"></td>
<td><input type="text" id="5" class="employee-search-input"></td>
<td><input type="text" id="6" class="employee-search-input"></td>
</tr>
</thead>
<tbody id="employee-click">
<tr>
<th>No</th>
<th>Year</th>
<th>System</th>
<th>Courses</th>
<th>SVC No</th>
<th>Pangkat</th>
<th>Name</th>
</tr>
</tbody>
</table>
</div>
</body>
</html>

multiple buttons on jquery html

There is a problem with the below code. The second button show it does not work. It doesn't open anything.
The problem is for sure the Show ..if I changed it to class , both do not work.
And I would like in each row the text to be left without any margin , but I couldn't fixed it
<!DOCTYPE html>
<html>
<body>
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Cafeteria Orders Management System</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<link rel="stylesheet" href="/resources/demos/style.css">
<style>
label,
input {
display: block;
}
input.text {
margin-bottom: 12px;
width: 95%;
padding: .4em;
}
fieldset {
padding: 0;
border: 0;
margin-top: 25px;
}
td {
max-width: 120px;
white-space: nowrap;
}
h1 {
font-size: 1.2em;
margin: .6em 0;
}
div#users-contain {
width: 300px;
margin: 20px 0;
}
div#users-contain table {
margin: 1em 0;
border-collapse: collapse;
width: 100%;
}
div#users-contain table td,
div#users-contain table th {
border: 9px solid #eee;
padding: .6em 120px;
text-align: left;
}
.ui-dialog .ui-state-error {
padding: .3em;
}
.validateTips {
border: 1px solid transparent;
padding: 0.3em;
}
</style>
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<script>
$(function() {
var dialog, form,
// From http://www.whatwg.org/specs/web-apps/current-work/multipage/states-of-the-type-attribute.html#e-mail-state-%28type=email%29
emailRegex = /^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+#[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/,
name = $("#name"),
email = $("#email"),
password = $("#password"),
allFields = $([]).add(name).add(email).add(password),
tips = $(".validateTips");
function updateTips(t) {
tips
.text(t)
.addClass("ui-state-highlight");
setTimeout(function() {
tips.removeClass("ui-state-highlight", 1500);
}, 500);
}
function checkLength(o, n, min, max) {
if (o.val().length > max || o.val().length < min) {
o.addClass("ui-state-error");
updateTips("Length of " + n + " must be between " +
min + " and " + max + ".");
return false;
} else {
return true;
}
}
function checkRegexp(o, regexp, n) {
if (!(regexp.test(o.val()))) {
o.addClass("ui-state-error");
updateTips(n);
return false;
} else {
return true;
}
}
function addUser() {
var valid = true;
allFields.removeClass("ui-state-error");
valid = valid && checkLength(name, "username", 3, 16);
valid = valid && checkLength(email, "email", 6, 80);
valid = valid && checkLength(password, "password", 5, 16);
valid = valid && checkRegexp(name, /^[a-z]([0-9a-z_\s])+$/i, "Username may consist of a-z, 0-9, underscores, spaces and must begin with a letter.");
valid = valid && checkRegexp(email, emailRegex, "eg. ui#jquery.com");
valid = valid && checkRegexp(password, /^([0-9a-zA-Z])+$/, "Password field only allow : a-z 0-9");
if (valid) {
$("#users tbody").append("<tr>" +
"<td>" + name.val() + "</td>" +
"<td>" + email.val() + "</td>" +
"<td>" + password.val() + "</td>" +
"</tr>");
dialog.dialog("close");
}
return valid;
}
dialog = $("#dialog-form").dialog({
autoOpen: false,
height: 400,
width: 350,
modal: true,
buttons: {
Ok: function() {
dialog.dialog("close");
}
},
close: function() {
form[0].reset();
allFields.removeClass("ui-state-error");
}
});
form = dialog.find("form").on("submit", function(event) {
event.preventDefault();
addUser();
});
$("#create-user").button().on("click", function() {
dialog.dialog("open");
});
});
</script>
</head>
<body>
<div id="dialog-form" title="Order Details">
<p class="validateTips">Spicy Sandwitch</p>
<p class="validateTips">More</p>
<form>
<fieldset>
<label for="name">More Comments</label>
<p class="validateTips">Sandwitch only lettuce</p>
<!-- Allow form submission with keyboard without duplicating the dialog button -->
<input type="submit" tabindex="-1" style="position:absolute; top:-1000px">
</fieldset>
</form>
</div>
<div id="users-contain" class="ui-widget">
<h1>Order List:</h1>
<table id="users" class="ui-widget ui-widget-content">
<thead>
<tr class="ui-widget-header ">
<th>Name/Surname</th>
<th>Address</th>
<th>Telephone</th>
<th>Time/Date</th>
<th>Order Details</th>
<th>Done</th>
</tr>
</thead>
<tbody>
<tr>
</td>
<td>John Doe</td>
<td>Lykavitou 12, 2109 Aglantzia</td>
<td>99123456</td>
<td>21:00 21/11/16</td>
<td>
<button id="create-user">Show</button>
</td>
<td align="center">
<input type="checkbox" class="case" name="case" value="1" />
</tr>
<tr>
</td>
<td>Andreas Georgiou</td>
<td>Grigori Auxentiou 12, 2109 Aglantzia</td>
<td>99654789</td>
<td>20:00 21/11/16</td>
<td>
<button id="create-user">Show</button>
</td>
<td align="center">
<input type="checkbox" class="case" name="case" value="1" />
</tr>
</tbody>
</table>
</div>
</body>
</html>

change in the button attribute id, u cant use more than one id with the same name on your website, you can use class instead of. For example
<button class="create-user">Show</button>
and in the js u must call to the class
$(".create-user")

As was suggested, you will want to use the class attribute and selector.
Working example: https://jsfiddle.net/Twisty/5n2h03nL/
HTML
<div id="users-contain" class="ui-widget">
<h1>Order List:</h1>
<table id="users" class="ui-widget ui-widget-content">
<thead>
<tr class="ui-widget-header ">
<th>Name/Surname</th>
<th>Address</th>
<th>Telephone</th>
<th>Time/Date</th>
<th>Order Details</th>
<th>Done</th>
</tr>
</thead>
<tbody>
<tr>
<td>John Doe</td>
<td>Lykavitou 12, 2109 Aglantzia</td>
<td>99123456</td>
<td>21:00 21/11/16</td>
<td>
<button id="create-user-1" class="showDialog">Show</button>
</td>
<td align="center">
<input type="checkbox" class="case" name="case" value="1" />
</tr>
<tr>
<td>Andreas Georgiou</td>
<td>Grigori Auxentiou 12, 2109 Aglantzia</td>
<td>99654789</td>
<td>20:00 21/11/16</td>
<td>
<button id="create-user-2" class="showDialog">Show</button>
</td>
<td align="center">
<input type="checkbox" class="case" name="case" value="1" />
</tr>
</tbody>
</table>
</div>
jQuery
$(".showDialog").button().on("click", function() {
dialog.dialog("open");
});
In regards to your other comment, you will need to provide more info. If you want the "Show" button to launch the dialog with custom details each time, those details need to be provided from some place. You can make use of data attributes on the row, like <tr data-comments=""> or make an AJAX call to a database. We can't just write that for you, you need to figure out where you want to store those details and how you want to collect them when the button is clicked.
In regards to this question, I suspect you've got the answer. So I would mark one as a answer, take a stab at your next issue, and if needed create a new question.

Toggling nested Table Columns - html, jQuery

I'm relatively new to jQuery but more seasoned using html and css.
I'm currently working on creating a new report that displays a nested table with quarterly results.Sample Quarterly Report
When a user clicks the img next to Q1 or Q2 table row - my expectation is for the Week (wk1 - wkn) columns to hide/show (toggle) as needed.
Additionally, when week columns are hidden, i would like the Quartely column(s) to collapse and dynamically show the sum of hidden weeks (wk1 - wkn).
Most of the code is borrowed from other posts but unfortunately, i was unable to find one that collapses and sums nested columns.
Thanks in advance for your help!
$(document).ready(function () {
var mImg = "http://t1.gstatic.com/images?q=tbn:1PS9x2Ho4LHpaM:http://www.unesco.org/ulis/imag/minus.png";
var pImg = "http://t3.gstatic.com/images?q=tbn:4TZreCjs_a1eDM:http://www.venice.coe.int/images/plus.png";
var sum1 = 0;
$('tr').find('.combat1').each(function () {
var combat1 = $(this).text();
if (!isNaN(combat1) && combat1.length !== 0) {
sum1 += parseFloat(combat1);
}
});
var sum2 = 0;
$('tr').find('.combat2').each(function () {
var combat2 = $(this).text();
if (!isNaN(combat2) && combat2.length !== 0) {
sum2 += parseFloat(combat2);
}
});
var sum3 = 0;
$('tr').find('.combat3').each(function () {
var combat3 = $(this).text();
if (!isNaN(combat3) && combat3.length !== 0) {
sum3 += parseFloat(combat3);
}
});
$('.total-combat1').html(sum1);
$('.total-combat2').html(sum2);
$('.total-combat3').html(sum3);
$('.header').click(function() {
//$('td:nth-child(2)').hide();
// if your table has header(th), use this
$('td:nth-child(2),th:nth-child(2)').toggle();
});
});
body {
background: #80dfff;
color: #d5d4d4;
font-family: Helvetica, Arial, sans-serif;
font-size: 12px;
margin: 0;
overflow-x: auto;
padding: 30px;
}
table {
background: white;
border-collapse: collapse;
border: 1px #393939 solid;
color: black;
margin: 1em 1em 1em 0;
}
thead {
border-collapse: collapse;
color: black;
}
th, td {
border: 1px #aaa solid;
padding: 0.2em;
}
<table>
<thead>
<tr><th colspan=8>2015</th></tr>
<tr><th colspan=4 class="header">Q1
<img src="http://t1.gstatic.com/images?q=tbn:1PS9x2Ho4LHpaM:http://www.unesco.org/ulis/imag/minus.png" />
</th>
<th colspan=3 class="header">Q2
<img src="http://t1.gstatic.com/images?q=tbn:1PS9x2Ho4LHpaM:http://www.unesco.org/ulis/imag/minus.png" />
</th>
<th></th>
</tr>
<tr>
<th>WK1</th>
<th>WK2</th>
<th>WK3</th>
<th>WK4</th>
<th>WK1</th>
<th>WK2</th>
<th>WK3</th>
<th>Total</th>
</tr>
</thead>
<tbody>
<tr>
<td class="combat1">8170</td>
<td class="combat1">6504</td>
<td class="combat1">6050</td>
<td class="combat1">6050</td>
<td class="combat1">7050</td>
<td class="combat1">7050</td>
<td class="combat1">7050</td>
<td class="total-combat1"></td>
</tr>
<tr>
<td class="combat2">8500</td>
<td class="combat2">10200</td>
<td class="combat2">7650</td>
<td class="combat2">7650</td>
<td class="combat2">8650</td>
<td class="combat2">8650</td>
<td class="combat2">8650</td>
<td class="total-combat2"></td>
</tr>
<tr>
<td class="combat3">9185</td>
<td class="combat3">5515</td>
<td class="combat3">6185</td>
<td class="combat3">7185</td>
<td class="combat3">9185</td>
<td class="combat3">9185</td>
<td class="combat3">9185</td>
<td class="total-combat3"></td>
</tr>
</tbody>
</table>

If you need to toggle the visibility of Q1 or Q2 you can change the header click event in order to obtain the effect produced in the following snippet.
The problem is to select all the cells of your interest and than toggle the visibility.
One way is to limit the cells selected using the jQuery :lt and :gt plus the css
$(function () {
var mImg = "http://t1.gstatic.com/images?q=tbn:1PS9x2Ho4LHpaM:http://www.unesco.org/ulis/imag/minus.png";
var pImg = "http://t3.gstatic.com/images?q=tbn:4TZreCjs_a1eDM:http://www.venice.coe.int/images/plus.png";
var sum1 = 0;
$('tr').find('.combat1').each(function () {
var combat1 = $(this).text();
if (!isNaN(combat1) && combat1.length !== 0) {
sum1 += parseFloat(combat1);
}
});
var sum2 = 0;
$('tr').find('.combat2').each(function () {
var combat2 = $(this).text();
if (!isNaN(combat2) && combat2.length !== 0) {
sum2 += parseFloat(combat2);
}
});
var sum3 = 0;
$('tr').find('.combat3').each(function () {
var combat3 = $(this).text();
if (!isNaN(combat3) && combat3.length !== 0) {
sum3 += parseFloat(combat3);
}
});
$('.total-combat1').html(sum1);
$('.total-combat2').html(sum2);
$('.total-combat3').html(sum3);
// The new header click event
$('.header').click(function(e) {
var isVisible = false;
var strSelector = '';
var everyTotIndex = 4;
if (this.innerText.trim() == 'Q1') {
everyTotIndex = 4;
strSelector = 'td:not([colspan="4"]):lt(4), th:not([colspan="4"]):lt(4)';
} else {
everyTotIndex = 3;
strSelector = 'td:not([colspan="3"]):lt(7):gt(3), th:not([colspan="3"]):lt(7):gt(3)';
}
$(this).parents('table').find('tr:eq(2), tbody > tr').find(strSelector).css('display', function(index, value) {
if (this.style.display == 'none') {
isVisible = true;
if ((index % everyTotIndex) == 0) {
$(this).parent().find('td[colspan="' + everyTotIndex + '"], th[colspan="' + everyTotIndex + '"]').remove();
}
return '';
}
if ((index % everyTotIndex) == 0) {
if (this.tagName.toLowerCase() == 'th') {
$('<th colspan="' + everyTotIndex + '" class="total">Total</th>').insertBefore($(this));
} else {
$('<td colspan="' + everyTotIndex + '" class="combat1 total">0</td>').insertBefore($(this));
var obj = $(this).parent().find('td[colspan="' + everyTotIndex + '"]');
obj.text(+obj.text() + parseInt(this.textContent));
}
} else {
if (this.tagName.toLowerCase() == 'td') {
var obj = $(this).parent().find('td[colspan="' + everyTotIndex + '"]');
obj.text(+obj.text() + parseInt(this.textContent));
}
}
return 'none';
});
if (isVisible) {
$(this).find('img').attr('src', "http://www.unesco.org/ulis/imag/minus.png");
} else {
$(this).find('img').attr('src', "http://www.unesco.org/ulis/imag/plus.png");
}
});
});
body {
background: #80dfff;
color: #d5d4d4;
font-family: Helvetica, Arial, sans-serif;
font-size: 12px;
margin: 0;
overflow-x: auto;
padding: 30px;
}
table {
background: white;
border-collapse: collapse;
border: 1px #393939 solid;
color: black;
margin: 1em 1em 1em 0;
}
thead {
border-collapse: collapse;
color: black;
}
th, td {
border: 1px #aaa solid;
padding: 0.2em;
}
<script src="http://code.jquery.com/jquery-1.11.3.js"></script>
<table>
<thead>
<tr><th colspan=8>2015</th></tr>
<tr><th colspan=4 class="header">Q1
<img src="http://t1.gstatic.com/images?q=tbn:1PS9x2Ho4LHpaM:http://www.unesco.org/ulis/imag/minus.png" />
</th>
<th colspan=3 class="header">Q2
<img src="http://t1.gstatic.com/images?q=tbn:1PS9x2Ho4LHpaM:http://www.unesco.org/ulis/imag/minus.png" />
</th>
<th></th>
</tr>
<tr>
<th>WK1</th>
<th>WK2</th>
<th>WK3</th>
<th>WK4</th>
<th>WK1</th>
<th>WK2</th>
<th>WK3</th>
<th>Total</th>
</tr>
</thead>
<tbody>
<tr>
<td class="combat1">8170</td>
<td class="combat1">6504</td>
<td class="combat1">6050</td>
<td class="combat1">6050</td>
<td class="combat1">7050</td>
<td class="combat1">7050</td>
<td class="combat1">7050</td>
<td class="total-combat1"></td>
</tr>
<tr>
<td class="combat2">8500</td>
<td class="combat2">10200</td>
<td class="combat2">7650</td>
<td class="combat2">7650</td>
<td class="combat2">8650</td>
<td class="combat2">8650</td>
<td class="combat2">8650</td>
<td class="total-combat2"></td>
</tr>
<tr>
<td class="combat3">9185</td>
<td class="combat3">5515</td>
<td class="combat3">6185</td>
<td class="combat3">7185</td>
<td class="combat3">9185</td>
<td class="combat3">9185</td>
<td class="combat3">9185</td>
<td class="total-combat3"></td>
</tr>
</tbody>
</table>

I tried to figure out what you was trying to do... Correct if me I wrong: you're trying to toggle the set of columns under, for e.g. Q1, when you click on the header column? If so, here the code. I modified your code, I added to nested tables under the main table to organize/ divide the two sets of information so I can select easily with jQuery which one I'm going to toggle.
$(document).ready(function() {
var mImg = "http://t1.gstatic.com/images?q=tbn:1PS9x2Ho4LHpaM:http://www.unesco.org/ulis/imag/minus.png";
var pImg = "http://t3.gstatic.com/images?q=tbn:4TZreCjs_a1eDM:http://www.venice.coe.int/images/plus.png";
var sum1 = 0;
$('tr').find('.combat1').each(function() {
var combat1 = $(this).text();
if (!isNaN(combat1) && combat1.length !== 0) {
sum1 += parseFloat(combat1);
}
});
var sum2 = 0;
$('tr').find('.combat2').each(function() {
var combat2 = $(this).text();
if (!isNaN(combat2) && combat2.length !== 0) {
sum2 += parseFloat(combat2);
}
});
var sum3 = 0;
$('tr').find('.combat3').each(function() {
var combat3 = $(this).text();
if (!isNaN(combat3) && combat3.length !== 0) {
sum3 += parseFloat(combat3);
}
});
$('.header-1').click(function() {
$("#table1").toggle();
});
$('.header-2').click(function() {
$("#table2").toggle();
});
});
body {
color: #d5d4d4;
font-family: Helvetica, Arial, sans-serif;
font-size: 12px;
margin: 0;
overflow-x: auto;
padding: 30px;
}
table {
background: white;
border-collapse: collapse;
border: 1px #393939 solid;
color: black;
margin: 0;
padding: 0;
}
thead {
border-collapse: collapse;
color: black;
}
th,
td,
tr {
border: 1px #aaa solid;
padding: 0;
}
td.combat {
padding: 0.2em;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
<table id="myTable">
<thead>
<tr>
<th colspan=2>2015</th>
</tr>
<tr>
<th class="header-1">Q1
<img src="http://t1.gstatic.com/images?q=tbn:1PS9x2Ho4LHpaM:http://www.unesco.org/ulis/imag/minus.png" />
</th>
<th class="header-2">Q2
<img src="http://t1.gstatic.com/images?q=tbn:1PS9x2Ho4LHpaM:http://www.unesco.org/ulis/imag/minus.png" />
</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<table id="table1">
<tr>
<th>WK1</th>
<th>WK2</th>
<th>WK3</th>
<th>WK4</th>
</tr>
<tr>
<td class="combat combat1">8170</td>
<td class="combat combat1">6504</td>
<td class="combat combat1">6050</td>
<td class="combat combat1">6050</td>
</tr>
<tr>
<td class="combat combat1">8170</td>
<td class="combat combat1">6504</td>
<td class="combat combat1">6050</td>
<td class="combat combat1">6050</td>
</tr>
</table>
</td>
<td>
<table id="table2">
<tr>
<th>WK1</th>
<th>WK2</th>
<th>WK3</th>
</tr>
<tr>
<td class="combat combat2">7050</td>
<td class="combat combat2">7050</td>
<td class="combat combat2">7050</td>
</tr>
<tr>
<td class="combat combat2">7050</td>
<td class="combat combat2">7050</td>
<td class="combat combat2">7050</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td></td>
</tr>
<tr>
<td></td>
</tr>
<tr>
<td></td>
</tr>
</table>
</td>
</tr>
</tbody>
</table>