Script Categories

Forms >>> Checkbox Changer.

Takes a series of known named checkboxes and checks or uncheck them all at once. It can even change each checkbox to the opposite checked or not checked value.

C1 C2 C3 C4 C5 C6 C7
C8 C9 C10 C11 C12 C13 C14

Add the below code to the <body> section of your page:

<script language="javascript" type="text/javascript">
/* Visit for full source code
and get more free JavaScript, CSS and DHTML scripts! */
<!-- Begin
function checkAll() {
for (var j = 1; j <= 14; j++) {
box = eval("document.checkboxform.C" + j);
if (box.checked == false) box.checked = true;

function uncheckAll() {
for (var j = 1; j <= 14; j++) {
box = eval("document.checkboxform.C" + j);
if (box.checked == true) box.checked = false;

function switchAll() {
for (var j = 1; j <= 14; j++) {
box = eval("document.checkboxform.C" + j);
box.checked = !box.checked;
//  End -->
<form name=checkboxform>
type=checkbox name=C1 checked>C1
<input type=checkbox name=C2 checked>C2
<input type=checkbox name=C3 checked>C3
<input type=checkbox name=C4 checked>C4
<input type=checkbox name=C5 checked>C5
<input type=checkbox name=C6 checked>C6
<input type=checkbox name=C7 checked>C7<br>
<input type=checkbox name=C8 checked>C8
<input type=checkbox name=C9 checked>C9
<input type=checkbox name=C10 checked>C10
<input type=checkbox name=C11 checked>C11
<input type=checkbox name=C12 checked>C12
<input type=checkbox name=C13 checked>C13
<input type=checkbox name=C14 checked>C14<br>
<input type=button value="Check All" onClick="checkAll()"><br>
<input type=button value="Uncheck All" onClick="uncheckAll()"><br>
<input type=button value="Switch All" onClick="switchAll()"><br>

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