Problem calling FCKeditor from javascript

I'm using Javascript to call FCKeditor with the editor content queried from a database. My Javascript include file is a .php file that returns the HTML for the editor.
I'm having problems when the HTML contains apostrophes as it seems to be making my javascript invalid. Is there a way to get around this, or be able to use addslashes() function on it?
Below is my code for the .php javascript include file:

<?php   
       $db=mysql_connect('localhost', 'abcd', 'efgh');
        mysql_select_db('db');
      
        $query = sprintf('SELECT contents from table WHERE field = "value"');
        
          $result = mysql_query($query);
          $row = mysql_fetch_assoc($result);
        $content = $row['contents'];
?>

function createEditor() {
    var form = '<?php 
        include('FCKeditor/fckeditor.php');
        $oFCKeditor = new FCKeditor('FCKeditor1');
        $oFCKeditor->BasePath = '/FCKeditor/';
      $oFCKeditor->Width  = '100%' ;
      $oFCKeditor->Height = '800' ;
        $oFCKeditor->Value = $content;
        $oFCKeditor->Create();
    ?>'; 

    $("ajaxcontentarea").innerHTML = form; 
   
}