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How do I check 1 checkbox or radial button as N/A and make all the items in the same table also get checked N/A automatically?

I have a simple table with 4 columns.
A row label and 1 column for PASS, FAIL AND N/A.
I have it so each row only allows 1 selection which seems to be working fine.
My header row only has N/A. I want it so if I check N/A in my header row all other rows below in the same table will also be marked N/A automatically.
I'm a novice to HTML and scripts FYI :(
Any help you can provide would be greatly appreciated!
This is what I tried.
<table>
<tr>
<TD><label>HEADING:</label> </td>
<TD><label></label></td>
<TD> </td>
<TD> </td>
<TD><label></label></td>
<TD> </td>
<TD><label>N/A</label></td>
<TD><input type="checkbox" name="HEADING1"id="is_HEADING1"/></td>
</tr>
<tr>
<TD><label>Q1:</label> </td>
<TD><label>PASS</label></td>
<TD><input type="radio" name="Q1" id="is_PASS" /></td>
<TD> </td>
<TD><label>FAIL</label></td>
<TD><input type="radio" name="Q1" id="is_FAIL" /></td>
<TD><label>N/A</label></td>
<TD><input type="radio" name="Q1" id="is_N/A" /></td>
</tr>
<tr>
<TD><label>Q2:</label> </td>
<TD><label>PASS</label></td>
<TD><input type="radio" name="Q2" id="is_PASS" /></td>
<TD> </td>
<TD><label>FAIL</label></td>
<TD><input type="radio" name="Q2" id="is_FAIL" /></td>
<TD><label>N/A</label></td>
<TD><input type="radio" name="Q2" id="is_N/A" /></td>
</tr>
</table>
<script>
function valueChanged() {
if (document.getElementByid("is_PASS").checked == true) {
document.getElementById("is_FAIL").value = 1;
document.getElementById("is_N/A").value = 0;
} else {
document.getElementById("is_PASS").value = 0;
document.getElementById("is_FAIL").value = 1;
document.getElementById("is_N/A").value = 1;
}
console.log(document.getElementById("is_PASS").value);
console.log(document.getElementById("is_FAIL").value)
console.log(document.getElementById("is_N/A").value)
}
<script>
function valueChanged() {
if (document.getElementByNameId("is_PASS").checked == true) {
document.getElementById("is_FAIL").value = 1;
document.getElementById("is_N/A").value = 0;
} else {
document.getElementById("is_PASS").value = 0;
document.getElementById("is_FAIL").value = 1;
document.getElementById("is_N/A").value = 1;
}
console.log(document.getElementById("is_PASS").value);
console.log(document.getElementById("is_FAIL").value)
console.log(document.getElementById("is_N/A").value)
}
</script>
I believe I need an if then else scenario that will state
if (document.getElementByid("is_HEADING1").checked == true) {
NAME "Q1" ID"N/A".VALUE = 0
NAME "Q2" ID"N/A".VALUE = 0
: } else {
:}
:<script>
I just don't know the correct syntax to reference an element Name and ID

Clone tr and checkbox event in jQuery

I have to clone my <tr> and I have list of checkbox like code below and when I add new row with list of checkbox and then I click on check box to show value in textbox field_resultsthe value not show only on first textbox not yet clone.
How when I add new tr and then when I click on which list of checkbox in which tr they will show value of my click in the same tr.
$("#add-new").on("click", function () {
$tr = $(this).closest("tr").next().clone(true);
$tr.insertAfter($(this).closest("tr"));
});
$(document).ready(function () {
$checks = $('#mych_box :checkbox');
$checks.on('change', function () {
var string = $checks.filter(":checked").map(function (i, v) {
return this.value;
}).get().join(",");
console.log(string);
$('#field_results').val(string);
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<tr>
<td>
<button type="button" id="add-new">Add New</button>
</td>
</tr>
<tr>
<td>
<input type="text" id="field_results" name="field_results[]"/><br>
<div class="multiselect" style="height: 100px;width: auto;" id="mych_box">
<label>
<input type="checkbox" id="virt_software_chb1" name="virt_software[]" value="White"/>White
<input type="checkbox" id="virt_software_chb2" name="virt_software[]" value="Red"/>Red
<input type="checkbox" id="virt_software_chb3" name="virt_software[]" value="Blue"/>Blue
</label>
</div>
</td>
</tr>

As defined above use true in clone to bind default events and use class instead of id to group element
$(".virt_software_chb").on('change', function () {
var string = $(this).closest('td').find('.virt_software_chb').filter(":checked").map(function (i, v) {
return this.value;
}).get().join(",");
$(this).closest('td').find('.field_results').val(string);
});
$("#add-new").on("click", function () {
$tr = $(this).closest("tr").next().clone(true);
$tr.insertAfter($(this).closest("tr"));
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table>
<tr>
<td>
<button type="button" id="add-new">Add New</button>
</td>
</tr>
<tr>
<td>
<input type="text" class="field_results" name="field_results[]"/><br>
<div class="multiselect" style="height: 100px;width: auto;" id="mych_box">
<label>
<input type="checkbox" class="virt_software_chb" name="virt_software[]" value="White"/>White
<input type="checkbox" class="virt_software_chb" name="virt_software[]" value="Red"/>Red
<input type="checkbox" class="virt_software_chb" name="virt_software[]" value="White"/>White
</label>
</div>
</td>
</tr>
</table>

withDataAndEvents (default: false)
A Boolean indicating whether event handlers should be copied along with the elements. As of jQuery 1.4, element data will be copied as well. - clone()
Try passing in true and see what you get.
$tr = $(this).closest("tr").next().clone(true);

HTML Table - Iterate over row and sum the fields

I have then following table:
<table style="width:100%" id="testTable">
<tr>
<th>length per</th>
<th>width per</th>
<th>length</th>
<th>width</th>
<th>total</th>
</tr>
<tr align='right'>
<td>
<input type="text" name="length-per-input">
</td>
<td>
<input type="text" name="width-per-input">
</td>
<td>
<input type="text" name="length-total-input">
</td>
<td>
<input type="text" name="width-total-input">
</td>
<td>
<input type="text" name="total-output" disabled="disabled">
</td>
</tr>
<tr align='right'>
<td>
<input type="text" name="length-per-input">
</td>
<td>
<input type="text" name="width-per-input">
</td>
<td>
<input type="text" name="length-total-input">
</td>
<td>
<input type="text" name="width-total-input">
</td>
<td>
<input type="text" name="total-output" disabled="disabled">
</td>
</tr>
</table>
<input type=button value='+' onclick="addRow()" />
<input type=button value='Calculate' onclick="Calculate()" />
I also have the javascript which adds the value and puts it in total:
<script>
function Calculate() {
var lengthPerInput = $("input[name='length-per-input']").val();
var widthPerInput = $("input[name='width-per-input']").val();
var lengthTotal = $("input[name='length-total-input']").val();
var widthTotal = $("input[name='width-total-input']").val();
var total = (lengthTotal/lengthPerInput) + (widthTotal/widthPerInput);
$("input[name='total-output']").val(total);
}
</script>
The aim here is to have it iterate over the two rows, then add each one separately.
I know how to get each row by using:
$('#testTable tr').each(function(){
console.log(this);
$(this).find('length-per-input').each(function(){
console.log(this);
})
})
But using the row (accessed via "this") I don't know how to get the correct cells, get their value, then perform the calculate on that row for the total.
Any advice on this please? Thank you!

function Calculate(tr_row) {
var lengthPerInput = tr_row.find("input[name='length-per-input']").val();
var widthPerInput = tr_row.find("input[name='width-per-input']").val();
var lengthTotal = tr_row.find("input[name='length-total-input']").val();
var widthTotal = tr_row.find("input[name='width-total-input']").val();
var total = (lengthTotal/lengthPerInput) + (widthTotal/widthPerInput);
tr_row.find("input[name='total-output']").val(total);
}
For every row you call function to summ the values
To the function you pass the row, then it can collect values on that row
$('#testTable tr').each(function(){
Calculate($(this))
})

You can use each() function to iterate through table and use find() function to find cell values.
function Calculate() {
$('#testTable tr').each(function() {
var lengthPerInput = $(this).find("input[name='length-per-input']").val();
var widthPerInput = $(this).find("input[name='width-per-input']").val();
var lengthTotal = $(this).find("input[name='length-total-input']").val();
var widthTotal = $(this).find("input[name='width-total-input']").val();
var total = (lengthTotal/lengthPerInput) + (widthTotal/widthPerInput);
$(this).find("input[name='total-output']").val(total);
});
}
Working Plunker
How to get a table cell value using jQuery?

toggle tbody of table with javascript

<div>
<input type="radio" name="check" value="cash" checked/>cash
<input type="radio" name="check" value="credit" />credit
</div>
<table>
<tbody id="cash">
<tr>
<td>
Cash User name:
</td>
<td>
<input type="text" name="cash1" />
</td>
</tr>
</tbody>
<tbody id="credit">
<tr>
<td>
credit User name:
</td>
<td>
<input type="text" name="credit1" />
</td>
</tr>
</tbody>
</table>
In the div tag I am having two radio buttons. By default I have made the radio button named cash checked now. What I want is that when radio button cash is checked tbody with id cash is shown and tbody with id credit hidden and when radio button with name credit is checked then tbody with id credit is shown and other tbody to be hidden. I have done it with jQuery but I want it to do with Javascript.

If you are willing to go for a pure CSS solution, than you have to get rid of the div around your radio buttons
Demo
tbody {
display: none;
}
input[value="cash"]:checked + input[value="credit"] + table tbody[id="cash"] {
display: table-row-group;
}
input[value="credit"]:checked + table tbody[id="credit"] {
display: table-row-group;
}
Note: Just make sure you declare some class and make these selectors
specific, else it will target all the elements in the above
combination in the document.

Here is the Javascript code, to be written after the HTML:
var radios = document.getElementsByName("check");
for( var i = 0; i < radios.length; i++){
switch( radios[i].value){
case "cash":
radios[i].onclick = function(){
document.getElementById("credit").style.display = 'none';
document.getElementById("cash").style.display = 'block';
};
break;
case "credit":
radios[i].onclick = function(){
document.getElementById("cash").style.display = 'none';
document.getElementById("credit").style.display = 'block';
};
break;
}
if( radios[i].checked){
radios[i].click();
}
}
The code is running at http://jsfiddle.net/2sPGn/

Javascript Code
<script>
function showData(obj) {
if ( obj.value == "cash") {
document.getElementById("cash").style.display = '';
document.getElementById("credit").style.display='none';
} else {
document.getElementById("cash").style.display = 'none';
document.getElementById("credit").style.display='';
}
}
</script>
HTML
<div>
<input type="radio" name="check" value="cash" onclick='showData(this);' checked/>cash
<input type="radio" name="check" value="credit" onclick='showData(this);' />credit
</div>
<table>
<tbody id="cash">
<tr>
<td>Cash User name:</td>
<td>
<input type="text" name="cash1" />
</td>
</tr>
</tbody>
<tbody id="credit" style='display:none'>
<tr>
<td>credit User name:</td>
<td>
<input type="text" name="credit1" />
</td>
</tr>
</tbody>
</table>

I think this will help you :
$(document).ready(function(){
$('#cash,#credit').hide();
$('input[type=radio]').change(function(){
$('#'+$(this).attr('value')).show();
});
});

Change radio button name javascript not working in IE

I have a few radiobuttons in a jsp page. I run a javascript method once the page is loaded that seeks for certain radio buttons and change its name so they work like a radio group.
I'm doing it this way because the radio buttons are inside jsf table and I have no access to the name property when coding and I want all of the radio buttons work like a radio group.
Anyways the script run without problems and the radio buttons' names are changed properly.
But while this works in FF 3 (the work like a radio group) it doesn't work in IE 6 or IE7 though they have the same 'name' property. Does anyone know how can I solve this?
function setRadioGroup (nombreRadio){
var listaRadios = document.getElementsByTagName('input');
var tam = listaRadios.length;
for (i = 0; i < tam; i++){
if (listaRadios[i].type == 'radio' && listaRadios[i].title == 'Seleccionar'){
listaRadios[i].name = nombreRadio;
}
}
}
EDIT: Added the code output of the webpage:
<form id="formulario" name="formulario" method="post"
action="/serequp/faces/administracion/articulosPv.jspx"><input
type="hidden" id="formulario:hidRegTablaArticulos"
name="formulario:hidRegTablaArticulos" value="">
<div class="dr-pnl rich-panel " id="formulario:ContFormularios">
<div class="dr-pnl-h rich-panel-header cabeceraFormulario"
id="formulario:ContFormularios_header">LISTADO DE GRUPOS DE
EQUIPAMIENTOS</div>
<div class="dr-pnl-b rich-panel-body cuerpoFormularios"
id="formulario:ContFormularios_body">
<table id="formulario:botones">
<tbody>
<tr>
<td class="estiloColumnas"><input id="formulario:j_id66"
name="formulario:j_id66"
onclick="A4J.AJAX.Submit('_viewRoot','formulario',event,{'parameters':{'formulario:j_id66':'formulario:j_id66'} ,'actionUrl':'/serequp/faces/administracion/articulosPv.jspx','similarityGroupingId':'formulario:j_id66'} );return false;"
value="Crear" type="button"></td>
<td class="estiloColumnas"><input id="formulario:j_id67"
name="formulario:j_id67"
onclick="A4J.AJAX.Submit('_viewRoot','formulario',event,{'parameters':{'formulario:j_id67':'formulario:j_id67'} ,'actionUrl':'/serequp/faces/administracion/articulosPv.jspx','similarityGroupingId':'formulario:j_id67'} );return false;"
value="Modificar" type="button"></td>
<td class="estiloColumnas"><input id="formulario:j_id68"
name="formulario:j_id68"
onclick="A4J.AJAX.Submit('_viewRoot','formulario',event,{'parameters':{'formulario:j_id68':'formulario:j_id68'} ,'actionUrl':'/serequp/faces/administracion/articulosPv.jspx','similarityGroupingId':'formulario:j_id68'} );return false;"
value="Borrar" type="button"></td>
<td></td>
</tr>
</tbody>
</table>
<table class="dr-table rich-table " id="formulario:tablaArticulos"
border="0" cellpadding="0" cellspacing="0">
<colgroup span="3"></colgroup>
<thead class="dr-table-thead">
<tr class="dr-table-subheader rich-table-subheader ">
<th class="dr-table-subheadercell rich-table-subheadercell "
scope="col" id="formulario:tablaArticulos:j_id69header">
<div id="formulario:tablaArticulos:j_id69header:sortDiv">Nombre</div>
</th>
<th class="dr-table-subheadercell rich-table-subheadercell "
scope="col" id="formulario:tablaArticulos:j_id71header">
<div id="formulario:tablaArticulos:j_id71header:sortDiv">Nombre</div>
</th>
<th class="dr-table-subheadercell rich-table-subheadercell "
scope="col" id="formulario:tablaArticulos:j_id75header">
<div id="formulario:tablaArticulos:j_id75header:sortDiv">Descripción</div>
</th>
</tr>
</thead>
<tbody id="formulario:tablaArticulos:tb">
<tr class="dr-table-firstrow rich-table-firstrow ">
<td class="dr-table-cell rich-table-cell center "
id="formulario:tablaArticulos:0:j_id69">
<table id="formulario:tablaArticulos:0:radioGroup1">
<tr>
<td><input id="formulario:tablaArticulos:0:radioGroup1:0"
type="radio" name="formulario:tablaArticulos:0:radioGroup1"
value="1" onclick="updateSelected('hidRegTablaArticulos', '1');"
title="Seleccionar"><label
for="formulario:tablaArticulos:0:radioGroup1:0"></label></td>
</tr>
</table>
</td>
<td class="dr-table-cell rich-table-cell center "
id="formulario:tablaArticulos:0:j_id71">fff</td>
<td class="dr-table-cell rich-table-cell center "
id="formulario:tablaArticulos:0:j_id75">PRUEBA SDS</td>
</tr>
<tr class="dr-table-firstrow rich-table-firstrow ">
<td class="dr-table-cell rich-table-cell center "
id="formulario:tablaArticulos:1:j_id69">
<table id="formulario:tablaArticulos:1:radioGroup1">
<tr>
<td><input id="formulario:tablaArticulos:1:radioGroup1:0"
type="radio" name="formulario:tablaArticulos:1:radioGroup1"
value="1" onclick="updateSelected('hidRegTablaArticulos', '2');"
title="Seleccionar"><label
for="formulario:tablaArticulos:1:radioGroup1:0"></label></td>
</tr>
</table>
</td>
<td class="dr-table-cell rich-table-cell center "
id="formulario:tablaArticulos:1:j_id71">dd</td>
<td class="dr-table-cell rich-table-cell center "
id="formulario:tablaArticulos:1:j_id75">PRUEBA SDS</td>
</tr>
</tbody>
</table>
<script>
setRadioGroup('radioGroup1');
</script></div>
</div>
<table id="formulario:botonera">
<tbody>
<tr>
<td><input id="formulario:j_id80" name="formulario:j_id80"
onclick="A4J.AJAX.Submit('_viewRoot','formulario',event,{'parameters':{'formulario:j_id80':'formulario:j_id80'} ,'actionUrl':'/serequp/faces/administracion/articulosPv.jspx','similarityGroupingId':'formulario:j_id80'} );return false;"
value="Grabar" type="button"></td>
</tr>
</tbody>
</table>
<input type="hidden" name="formulario" value="formulario"><input
type="hidden" name="autoScroll" value=""><input type="hidden"
name="formulario:j_idcl" value=""><input type="hidden"
name="formulario:_link_hidden_" value=""><script
type="text/javascript">function clear_formulario() {
_clearJSFFormParameters('formulario','',['formulario:j_idcl','formulario:_link_hidden_']);
}
function clearFormHiddenParams_formulario(){clear_formulario();}
function clearFormHiddenParams_formulario(){clear_formulario();}
clear_formulario();</script><input type="hidden" name="javax.faces.ViewState"
value="!40dc077b"></form>*

I finally got the answer!
The solution come from this blog, but with some modification (the blog, as many others, solve the problem for create a new element, not to modify an existant one).
The problem is that Internet Explorer does not allow some attributes modification during the run time. One of these is the attribute name. As it can not be modified, the behaviour is not what you're expecting. The solution is to create a new element, remove the old one and replace it by the new one.
Here the solution (work with Firefox 3 and IE 7):
<script>
function setRadioGroup (name){
var listaRadios = document.getElementsByTagName('input');
var tam = listaRadios.length;
for (i = 0; i < tam; i++){
cur = listaRadios[i];
if (cur.type == 'radio' ){
try {
// if not IE, raise an error and go to catch.
element = document.createElement('<input onclick="alert(this.name + this.value);" type="radio" name="' + name + '" value="' + cur.value + '">');
parentNode = cur.parentNode;
parentNode.insertBefore(element, cur);
parentNode.removeChild(cur);
} catch (err ) {
cur.setAttribute('name', name);
cur.setAttribute('onclick', 'alert(this.name + this.value);');
}
}
}
}
</script>
<html>
<head>
<title>My Page</title>
</head>
<body onload="setRadioGroup('test')">
<form name="myform" action="http://www.mydomain.com/myformhandler.cgi" method="POST">
<div align="center"><br>
<input type="radio" value="Milk"> Milk<br>
<input type="radio" value="Butter" > Butter<br>
<input type="radio" value="Cheese"> Cheese
<hr>
<input type="radio" value="Water"> Water<br>
<input type="radio" value="Beer"> Beer<br>
<input type="radio" value="Wine" > Wine<br>
</div>
</form>
</body>
</html>