/*********************************
* FONCTION * AFFICHAGE DU MENU *
**********************************/
var menu = false;
function ART_showMenu(url) {
    if(menu==false) {
        menu = document.createElement("div");
        menu.id = "popup_div"; 
        menu.style.position = "absolute";
        menu.style.zIndex = 1000; 
        menu.style.width = '960px';
        menu.style.height = '148px';
        var position_bloc = $("#position_bloc").position(); 
        menu.style.left = position_bloc.left+'px';
        menu.style.top = position_bloc.top+'px';
        document.body.appendChild(menu);
    }
   ART_ajax(url,'popup_div',0);      
}

function ART_hideMenu() {
    // fade out jquery
    //if ($("#popup_div").is(":visible")) $("#popup_div").slideDown('slow');
    $("#popup_div").slideUp('fast'); 
}