jQuerySrc = 'fileadmin/js/jquery-min.js';

// only load jQuery if not present
if (typeof jQuery == 'undefined')  {
    document.write("<script type=\"text/javascript\" src=\"http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js\"></"+"script>");
    document.write("<script type=\"text/javascript\" src=\"typo3conf/ext/smubanner/jquery/jquery.textareaCounter.plugin.js  \"></"+"script>");
}

// if Google is down
if (typeof jQuery == 'undefined') {
    document.write("<script type=\"text/javascript\" src=\"" + jQuerySrc + "\"></"+"script>");
}