Checking & Unchecking Checkboxes inside a JQuery Mobile Dialog - jquery-mobile

Question

I tried this code to achieve what I want to do. It worked when I tried it in my ordinary HTML file, but when I tried it in my JQuery Mobile page, the code did not work well for me. Are there different ways or code to select JQuery Mobile checkboxes?
Here's the code that I tried:
JAVASCRIPT:
<script>
function SetAllCheckBoxes(FormName, FieldName, CheckValue)
{
if(!document.forms[FormName])
return;
var objCheckBoxes = document.forms[FormName].elements[FieldName];
if(!objCheckBoxes)
return;
var countCheckBoxes = objCheckBoxes.length;
if(!countCheckBoxes)
objCheckBoxes.checked = CheckValue;
else
// set the check value for all check boxes
for(var i = 0; i < countCheckBoxes; i++)
objCheckBoxes[i].checked = CheckValue;
}
HTML
<form method="GET" name="myForm" onsubmit="return false;">
<label for="myCheckbox1">
<input type="checkbox" name="myCheckbox" value="1" id="myCheckbox1">
I like Britney Spears
</label>
<br>
<label for="myCheckbox2"><input type="checkbox" name="myCheckbox" value="2" id="myCheckbox2">
I like Hillary Duff
</label>
<br>
<label for="myCheckbox3"><input type="checkbox" name="myCheckbox" value="3" id="myCheckbox3">
I like Mandy Moore
</label>
<br>
<input type="button" onclick="SetAllCheckBoxes('myForm', 'myCheckbox', true);" value="I like them all!">
<input type="button" onclick="SetAllCheckBoxes('myForm', 'myCheckbox', false);" value="I don't like any of them!">

Answer 1

I was not aware that JQuery Mobile's checkboxes need to be refreshed after unchecking/checking them via JQuery or Javascript. Here's the code:
$("input[type='checkbox']").attr("checked",true).checkboxradio("refresh");
http://api.jquerymobile.com/checkboxradio/#method-refresh

Answer 2

Try this:
function SetAllCheckBoxes(FormName, CheckValue){
$.each($("#"+FormName+" input[type=checkbox]"), function(){
$(this).attr("checked",CheckValue).checkboxradio("refresh");
});
}
I removed the FieldName because your function was named SetAllCheckBoxes, just your input fields are the same. You just need tell what's your form and the state of your checkboxes.

Answer 3

To toggle / refresh checkboxes in jquery mobile you need to use .prop, rather than .attr.
$("input[type='checkbox']").prop("checked",true).checkboxradio("refresh");