var menu_id_courant = 0;
function Raz() {
    if (menu_id_courant) {
        getElt('menu' + menu_id_courant).className = '';
        hideElt(getElt('ssmenu' + menu_id_courant));
        menu_id_courant = 0;
    }
    hideElt(getElt('simul_menu'));
    hideElt(getElt('cache'));
    setVisibilityInput(true);
    return true;
}
function overMenu(id) {
    if (menu_id_courant == id) return true;
    Raz();
    
    var elt = getElt('menu' + id);
    //elt.className = 'on';
    menu_id_courant = id;

    setEltHeight(getElt('cache'), getCurrentWinHeight());
    getElt('simul_menu').innerHTML = '<a href="' + elt.href + '"><img src="static/images/pix.gif" width="' + getEltWidth(elt) + '" height="' + getEltHeight(elt) + '" border="0"></a>';
    setEltLeft(getElt('simul_menu'), getEltPageLeft(elt));
    setEltTop(getElt('simul_menu'), getEltPageTop(elt));

    var decalage = 0;
    var decalage_haut = 5; 
    if (!/page\d+/.test(id)) {
        decalage = getEltPageLeft(elt) - getEltPageLeft(elt.parentNode);
        decalage_haut = 14; 
    }
    setEltLeft(getElt('ssmenu' + id), getEltPageLeft(elt) - decalage + getEltWidth(elt) / 2 - getEltWidth(getElt('ssmenu' + id)) / 2);
    setEltTop(getElt('ssmenu' + id), getEltPageTop(elt) + (/page\d+/.test(id) ? 5 : 14));

    showElt(getElt('ssmenu' + id));
    showElt(getElt('simul_menu'));
    showElt(getElt('cache'));

    setVisibilityInput(false);
    return true;
}
function setVisibilityInput(visible) {
    if (is.ie) {
        for (var i=0;i<document.getElementsByTagName("select").length;i++) {
            elt = document.getElementsByTagName("select")[i];
    	    if (elt && visible) showElt(elt);
    	    else if (elt && !visible) hideElt(elt);
        }
    }
    return true;
}