function OnMenu(str, img) {
    menu.style.top = document.body.scrollTop + event.y - 20;
    menu.style.left = document.body.scrollLeft + event.x + 5;
    menu.innerHTML = 
          "<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n"+
          "<tr>\n"+
          "<td bgcolor=\"#666666\">\n"+
          "<table border=\"0\" style=\"font-size:10pt;\" cellspacing=\"0\" cellpadding=\"2\">\n"+
          "<tr bgcolor=\"#FFFFee\">\n"+
          "<td nowrap>"+str+"は現在<b>工事中</b>です。</td>\n"+
          "</tr>\n"+
          "</table>"+
          "</tr>\n"+
          "</table>";


    menu.style.visibility = "visible";
    return false;
}

function OffMenu() {
    menu.style.visibility = "hidden";
    return false;
}