function okiniiri() {
    
    if(navigator.userAgent.indexOf("MSIE") > -1){ //Internet Explorer
        //document.write('<!-'+'-[if IE]>');
        //document.write('<input type="button" value="お気に入りに追加"');
        //document.write(' onclick="window.external.AddFavorite(\'http://www.yahoo.co.jp\',\'yahoo\')">');
        //document.write('<![endif]-'+'->');
        //window.external.AddFavorite(document.title,location.href);
        javascript:window.external.AddFavorite(location.href,document.title);return false
        
    }else if(navigator.userAgent.indexOf("Firefox") > -1){ //Firefox
        window.sidebar.addPanel(document.title,location.href,"");
        //}else if(navigator.userAgent.indexOf("Opera") > -1){ //Opera
        //document.write('<a href="' + location.href + '" rel="sidebar" title=document.title>ブックマークに追加</a>');
        //window.sidebar.addPanel(document.title,location.href,"");
    } else { //該当なし
        void(0); //何もしない
    }
}