bookmarklet with jquery

<a href="javascript:void((function(){
    if (typeof(jQuery) != 'function') {
        var noeud_js = document.createElement('script');
        noeud_js.setAttribute('src', 'http://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js');
        document.getElementsByTagName('head')[0].appendChild(noeud_js);
    }
 
    function verif_loaded(){
        if (typeof(jQuery) == 'function') {
            clearInterval(interval);
            code();
        }
    }
    var interval = window.setInterval(verif_loaded, 100);
    function code(){
     	$(document.body).css('background-color','yellow');
    }
})())">Bookmarklet avec jquery</a>