function Click(a,chemin) {
    domain = document.location.href.replace("http://","");
    domain = domain.replace("www.","");
    if(domain.indexOf("/") != -1 ) {
        domain = domain.substr(0,domain.indexOf("/"));
    }
    fragment_url = 'http://api.apicius.com/tracking/clic.php?sort='+a+'&domain='+ domain ; 
    tracking_frame = document.createElement('iframe');
    tracking_frame.setAttribute("src", fragment_url);
    tracking_frame.setAttribute("width", "0px");
    tracking_frame.setAttribute("height", "0px");  
    document.body.appendChild(tracking_frame);
}