// ボタンクリック時の詳細表示/非表示処理
function m_btn_click(Ires, Iobj)
{
    if(Iobj.style.display == "block") {
        Iobj.style.display = "none";
    } else {
        Iobj.style.display = "block";
    }
}
// カーソルが当たった時のイメージ入替処理
function m_chng_img(imgName, imgSrc)
{
    var appVer = parseInt(navigator.appVersion);
    var isNC = (document.layers && (appVer >= 4));  // Netscape Navigator 4.0 or later
    var isIE = (document.all    && (appVer >= 4));  // Internet Explorer  4.0 or later
    if(isNC || isIE){
        if(document.images){
            var img = document.images[imgName];
            if (!img) img = HpbImgFind(document, imgName);
            if (img)  img.src = imgSrc;
        }
    }
}