Hello guys, I'm working on this project that uses a live table edit style (works perfectly) but trying to include the twitter style follow and unfollow in one of the columns (The last one precisely) to update a value in the database via ajax and another php script (the update script). The php works well but I'm having problems returning the data to ajax to post to the other php script.

Below shows the major part of the script (The php and ajax). I included a php comment on the important area of interest.




PHP Code:
$query_pag_data = "SELECT * FROM applicant_result WHERE year='$year' AND class= '$class' ORDER by candidate_no ";

$uid=strip_tags($id);

$result_pag_data = mysql_query($query_pag_data) or die('MySql Error' . mysql_error());


$finaldata = "";
$tablehead= '';
$tablehead= "<tr>
        <th class='data'>#</th>
        <th  class='data'>Applicant ID</th>
        <th class='data'>Year</th>
        <th class='data'>Class</th>
        <th class='data'>$subject_1</th>
        <th class='data'>$subject_2</th>
        <th class='data'>$subject_3</th>
        <th class='data'>$subject_4</th>
        <th class='data'>$subject_5</th>
        <th class='data'>Total</th>
        <th class='data'>Status</th>
        <th class='data'>Interview</th>
        </tr>";

while($row = mysql_fetch_array($result_pag_data)) 
{


$id=htmlentities($row['candidate_no']);
$subject_1=htmlentities($row['subject_1']);
$subject_2=htmlentities($row['subject_2']);
$subject_3=htmlentities($row['subject_3']);
$subject_4=htmlentities($row['subject_4']); 
$subject_5=htmlentities($row['subject_5']);
$total=htmlentities($row['total']);
$status=htmlentities($row['interview']);
$uid= strip_tags($row['candidate_no']);

/* HELLO FORUMITES, THIS IS THE MAJOR AREA OF FOCUS HERE */


if($status!=0){$button="
<span id='loading<?php echo $uid?>'></span>
            <span class='button following' id='following<?php echo $uid?>' onClick='follow_or_unfollow(<?php echo $uid?>,'following');'>Following</span>
            
            <span style='display:none;' class='button follow' id='follow<?php echo $uid?>' onClick='follow_or_unfollow(<?php echo $uid?>,'follow');'>Follow</span>
";}

                  else{

$button="
<span id='loading<?php echo $uid?>'></span>
            <span class='button follow' id='follow<?php echo $uid?>' onClick='follow_or_unfollow(<?php echo $uid?>,'follow');'>Follow</span>
            
            <span class='button following' style='display:none;' id='following<?php echo $uid?>' onClick='follow_or_unfollow(<?php echo $uid?>,'following');'>Following</span>
";}



$tabledata.="<tr id='$id' class='edit_tr'>

<td class='edit_td' >
<span class='text'>$counter</span>

</td>
<td class='edit_td' >
<span class='text'>$id</span>

</td>
<td class='edit_td' >
<span class='text'>$year</span>
<input type='hidden' value='$year' class='editbox' id='six_input_$id' />
</td>
<td class='edit_td' >
<span class='text'>$class</span>
<input type='hidden' value='$class' class='editbox' id='seven_input_$id' />
</td>

<td class='edit_td' >
<span id='one_$id' class='text'>$subject_1</span>
<input type='text' value='$subject_1' class='editbox' id='one_input_$id' />
</td>

<td class='edit_td' >
<span id='two_$id' class='text'>$subject_2</span> 
<input type='text' value='$subject_2' class='editbox' id='two_input_$id'/>
</td>

<td class='edit_td' >
<span id='three_$id' class='text'>$subject_3 </span> 
<input type='text' value='$subject_3' class='editbox' id='three_input_$id'/>
</td>

<td class='edit_td' >
<span id='four_$id' class='text'>$subject_4</span>
<input type='text' value='$subject_4' class='editbox' id='four_input_$id' />
</td>

<td class='edit_td' >
<span id='five_$id' class='text'>$subject_5</span>
<input type='text' value='$subject_5' class='editbox' id='five_input_$id' />
</td>
</td>
<td class='edit_td' >
<span class='text'>$total</span>

</td>


<td class='edit_td' >
<span class='text'>$status</span>

</td>
        
         
<td>
$button            
</td> 

</tr>";
$counter++;

}
$finaldata = "<table width='100%'>".$tablehead." ".$tabledata. "</table>"; // Content for Data




echo $finaldata;

/*  NOW THE AJAX */

PHP Code:
<script type="text/javascript">
//Changes the Following text to Unfollow when mouseover the button 
$(document).ready(function()
{
    $(
'.following').hover(function()
    {
        $(
this).text('Unfollow');
    },function()
    {
        $(
this).text("Following");
    });
 });
 
 
//Perform the Following and Unfollowing work
function follow_or_unfollow(id,action)
{
    var 
dataString "id=" id;
    $.
ajax({  
        
type"POST",  
        
url"follow_or_unfollow.php",  
        
datadataString,
        
beforeSend: function() 
        {
            if ( 
action == "following" )
            {
                $(
"#following"+id).hide();
                $(
"#loading"+id).html('<img src="loading.gif" align="absmiddle" alt="Loading...">');
            }
            else if ( 
action == "follow" )
            {
                $(
"#follow"+id).hide();
                $(
"#loading"+id).html('<img src="loading.gif" align="absmiddle" alt="Loading...">');
            }
            else { }
        },  
        
success: function(response)
        {
            if ( 
action == "following" ){
                $(
"#loading"+id).html('');
                $(
"#follow"+id).show();
                
            }
            else if ( 
action == "follow" ){
                $(
"#loading"+id).html('');
                $(
"#following"+id).show();
            }
            else { }
        }
    }); 
}
</script>