SharePoint 2010: Select All Checkboxes Using JQuery in SharePoint Choice Field - TechNet Articles - United States (English) - TechNet Wiki

This article is very useful for creating Select All Checkboxes using jq

<script type="text/javascript" src="https:

//ajax.googleapis.com/ajax/libs/jquery/1.8.1/jquery.min.js%22%20originalAttribute=%22href%22%20originalPath=%22>

<script type="text/javascript"

$(document).ready(function(){

$(".ms-RadioText[title='Select All'] :checkbox"

).click(

function(){

var checked_status =

this.checked;

var otherids = (this

.id).substring(0,
 (

this

.id).length-2 );

$("input[id^='"+otherids+"']").each(function()

{

this.checked = checked_status;

});

});

});

</script>