Aşağıdaki kodu siteme eklediğimde firefox ta gösteriyor internet expolerede göstermiyor problem neden kaynaklanıyordur sizce ?

  <marquee id="slider" onmouseover=this.stop(); style="WIDTH: 100%" onmouseout=this.start(); scrollAmount=3 scrollDelay=1>
                            <table cellpadding="0" cellspacing="0" border="0">
                                <tr>
                                <?php
                $query = $db->write_query("
                                            SELECT author_id, name, image
                                            FROM authors
                                            ORDER BY author_order ASC
                                            LIMIT 5
                                            ");
                                            
                while($row = $db->sql_fetcharray($query)){
                
                    $qquery = $db->read_query("
                                                SELECT article_id, title
                                                FROM articles
                                                WHERE author_id = $row[author_id]
                                                AND active = 'Y'
                                                ORDER BY date DESC
                                                LIMIT 1
                                                ");
                                                
                    $rrow = $db->sql_fetcharray($qquery);
                    
                    if($rrow[title]){
                    $article = "<a href=\"author_article_detail.php?article_id=".$rrow[article_id]."\">".stripslashes($rrow[title])."</a>";
                    }else{
                    $article = "Henüz Yazı Eklenmemiş";
                    }
                ?>
                <div class="author_box">
                    <div class="image"><img src="images/authors/th_<?=$row[image]?>" width="38" height="46" /></div>
                    <div class="text"><b class="authorName"><?php echo stripslashes($row[name]);?></b><br /><?=$article?></div>
                </div>
                <?php
                }
                ?>
                                </tr>
                            </table>                        
                            </marquee>