Dynamic js function not working

function add() {
    var parent = document.getElementById('parent');
    
    /* creating new article div */
    var article = document.createElement('DIV');
    var inntertext = "";
    
    /* setting new div id and name attributes */
    article.id = 'article' + elCount;
    article.name = 'article' + elCount;
    
    // FCKeditor
    $oFCKeditor = new FCKeditor(article' + elCount + ');
    $oFCKeditor->BasePath = '<?php echo SITE_URL ?>/includes/classes/fckeditor/';
    $oFCKeditor->Config['ToolbarStartExpanded'] = false ;
    $oFCKeditor->Create();

    /* preparing new article form */
    inntertext += '<div class="outer">';
    inntertext += '<textarea name="text' + elCount + '"></textarea>';
    inntertext += '</div>';
    
    /* setting innerHTML of new div */
    article.innerHTML = inntertext;
    
    /* appending the new div to parent */
    parent.appendChild(article);
    elCount++;
}