How to update the data in one region through ajax?

user2046638

i want to upload the data in one region of four links, when I clicked the link1 it will load the data in specific region, and when I clicked the link 2 it will load the page on the same region where first link open, how can I do that?

    <div class="container">
    <div class="span-5">
        <ul>
            <li><?php echo $this->Manager->link('Ecommerce',array('controller'=>'associations','action'=>"view_report"),array('id'=> 'home','class'=>'nav'));?></li>
            <li><a href="#" id="home" class="nav">Home</a></li>
            <li><a href="#" id="about" class="nav">About</a></li>
            <li><a href="#" id="contact" class="nav">Contact Us</a></li>
        </ul>
    </div>
</div>

the data which I want to open from ecommerce link is int the newfile.ctp like that

 <?php v_start($this);?>

<h1><?php echo __l('View Report');?></h1>

<div class="firsttable">
    <table width="100%" border="0" cellspacing="0" cellpadding="2">
        <thead>
          <tr class="heading">
            <td><?php  echo __l('Financials');?></td>
            <td><?php  echo __l('Payment Methods');?></td>
            <td><?php  echo __l('By Credit Card');?></td>
          </tr>
        </thead>
        <tbody>  

          <tr>
            <td>
                <?php 
                    echo __l("YTD t ");
                    $ytd_total=0;
                    foreach ($YTD as $yearData)
                    {

                        $ytd_total +=$yearData['AssocPaymentDetail']['membership_fee'] - $yearData['AssociationDiscount']['amount'];

                    }
                    echo  $ytd_total."<br />";

                ?>
                <?php

                echo __l("Last 5days ");
                 $fda_total= 0;
                 foreach ($fiveDays as $fiveDaysData)
                    {

                        $fda_total += $fiveDaysData['AssocPaymentDetail']['membership_fee'] - $fiveDaysData['AssociationDiscount']['amount'];

                    }
                    echo $fda_total ."<br />";
                 ?> 
            </td>
            <td><?php  echo __l('creditcard');?>  <?php echo __l($ccSum) ?> </td>
            <td>
                <?php
        //       debug($paymentRecord);
        //      debug($ccIndex);
                    foreach($paymentRecord as $data =>$key){
                        foreach($ccIndex as $index){
                            if($data== $index)
                            {
                                echo "$data ttt";
                                if(is_array($key))
                                    echo array_sum($key);
                                else 
                                    echo "tt $key";


                            }

                            echo "<br/>";
                        }   

                    }

                ?>
            </td>
          </tr>
        </tbody>  
    </table>
</div>

Please help me to do this, thanks in advance