在jquery中单击复选框时如何将会话值获取到文本框

I'm having two pages with similar textboxes when user inserts data into first page and goes to next page, if he need to give same data am adding a checkbox, when user clicks it same data which is in session from before page has to be get into the second page variables through ajax. can someone help me please. thanks

Response for the Comment

I made sample code which will give you idea about how to can do this.

jQuery Code for checkbox change event

$(function(){

    $('input:checkbox').change(function(){

        if($(this).is(':checked'))
        {
            $.ajax({
                url : 'script.php',
                success : function(session)
                {
                    $('input:text').val(session);
                }
            });
        }

    });

});

HTML

<input type="text" />
<input type="checkbox" />

script.php

<?php
session_start();

echo $_SESSION['name_of_the_session_variable'];
exit;
?>

EDIT

$("#checked").click(function()
{
    if ($(this).is(':checked'))
    {   
        $('#provisional_total_public_funding').val(<?php echo empty($this->session->store['actual_info']['actual_total_public_funding']) ? '' : $this->session->store['actual_info']['actual_total_public_funding']; ?>);
    }
});

Ajax Request Response

<select name="fin_year" id="fin_year">
    <option value="" >Please select an year</option>
    <option value="<?= $actFinYr; ?>"><?= $actFinYr; ?></option>
</select>

<script type="text/javascript">

    $(function(){

        $('#fin_year').change(function()
        {
            var options = $(this);
            if(options.val() != '')
            {
                $.ajax(
                {
                    url     : 'CODEIGNITER_HTTP_URL/'+options.val(),
                    beforeSend : function()
                    {
                        //show loading
                    },
                    success : function(response)
                    {
                        //play with the response from server.
                    }
                });
            }
        });

    });

</script>

I'd use jQuery like this:

HTML 1st page:

input1 <input type="text" id="input1" name="input1"/>
input2 <input type="text" id="input2" name="input2"/>

jQuery 1st page:

$input1 = $("#input1");
$input2 = $("#input2");
$input1.keydown(function(){
    $.post("yourPHP.php", {input1: $input1.val()});
});
$input2.keydown(function(){
    $.post("yourPHP.php", {input1: $input1.val()});
});

PHP 1st page:

if(session_id() == '') {
    session_start();    
}
if(isset($_POST['input1'])){
    $_SESSION['input1'] = $_POST['input1'];
}
if(isset($_POST['input2'])){
    $_SESSION['input2'] = $_POST['input2'];
}

HTML 2nd page:

input1 <input type="text" id="input1" name="input1"/>
input2 <input type="text" id="input2" name="input2"/>
<br/>
radio1 <input type="radio" id="radio1" name="radio"/>
radio2 <input type="radio" id="radio2" name="radio"/>

jQuery second page:

$input1 = $("#input1");
$input2 = $("#input2");
$radio1 = $("#radio1");
$radio2 = $("#radio2");
$radio.click(function(){
    $.post("yourPHP.php", {request: "input1"}, function(data){
        $input1.val(data);
    });
});
$input2.keydown(function(){
    $.post("yourPHP.php", {request: "input2"}, function(data){
        $input2.val(data);
    });
});

PHP 2nd page:

if(session_id() == '') {
    session_start();    
}
if(isset($_POST['request'])){
    switch($POST['request']){
        case 'input1':
            echo $_SESSION['input1'];
            break;  
        case 'input2':
            echo $_SESSION['input2'];
            break;
    }
}

I hope it works.