jQuery.noConflict();

(function($){
$(document).ready(function() {
    $("#nom").autocomplete("/ajax/entreprise.aspx",
    {
        max: 10,
        minChars: 2,
        width: 250,
        cacheLength: 20,
        delay: 100,
        selectFirst: true,
        extraParams: { simple: true }
    });
});

})(jQuery) ;