JS Super simple checkbox full selection code

Source: Internet
Author: User

<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
<meta http-equiv Untitled Document </title>

<script language= "JavaScript" >
function All_ (str) {
var box_l = Document.getelementsbyname ("box_x[]"). Length;
for (var j = 0; J < box_l; J + +) {
Document.getelementsbyname ("box_x[]") [j].checked = str;

<form name= "Form1" method= "Post" action= "" >
<input name= "box_x[]" type= "checkbox" class= "MYINPUT1" id= "id" value= "Home" >
<input name= "box_x[]" type= "checkbox" class= "MYINPUT1" id= "id" value= "Peking University" >
<input name= "box_x[]" type= "checkbox" class= "MYINPUT1" id= "id" value= "China" >
<input name= "" type= "button" onclick= "All_ (True)"/>

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