function ipreloader() {
    newimage0 = new Image();
    newimage0.src = "images/menubtn/btn_add_mo.gif";
    newimage1 = new Image();
    newimage1.src = "images/menubtn/btn_homepage_mo.gif";
    newimage2 = new Image();
    newimage2.src = "images/menubtn/btn_join_mo.gif";
    newimage3 = new Image();
    newimage3.src = "images/menubtn/btn_mymachines_mo.gif";
    newimage4 = new Image();
    newimage4.src = "images/menubtn/btn_preferences_mo.gif";
    newimage5 = new Image();
    newimage5.src = "images/menubtn/btn_search_mo.gif";
    newimage6 = new Image();
    newimage6.src = "images/menubtn/btn_login_mo.gif";
    newimage7 = new Image();
    newimage7.src = "images/menubtn/btn_logout_mo.gif";
    newimage8 = new Image();
    newimage8.src = "images/menubtn/btn_library_mo.gif";
}

function ipreloader_p() {
    newimage0 = new Image();
    newimage0.src = "../images/menubtn/btn_add_mo.gif";
    newimage1 = new Image();
    newimage1.src = "../images/menubtn/btn_homepage_mo.gif";
    newimage2 = new Image();
    newimage2.src = "../images/menubtn/btn_join_mo.gif";
    newimage3 = new Image();
    newimage3.src = "../images/menubtn/btn_mymachines_mo.gif";
    newimage4 = new Image();
    newimage4.src = "../images/menubtn/btn_preferences_mo.gif";
    newimage5 = new Image();
    newimage5.src = "../images/menubtn/btn_search_mo.gif";
    newimage6 = new Image();
    newimage6.src = "../images/menubtn/btn_login_mo.gif";
    newimage7 = new Image();
    newimage7.src = "../images/menubtn/btn_logout_mo.gif";
    newimage8 = new Image();
    newimage8.src = "../images/menubtn/btn_library_mo.gif";
}
function pbtn_mo(id, state) {
    if (state == true) {
        document.getElementById(id).src = "../images/menubtn/" + id + "_mo.gif";
    } else {
        document.getElementById(id).src = "../images/menubtn/" + id + ".gif";
    }
}