function my_openwin(url,in_width,in_height)
{
win = new Window({className: "alphacube", title: "プレビュー", width:in_width, height:in_height,destroyOnClose: true, recenterAuto:false});
win.getContent().update("<img src='"+url+"' alt='東京デザイン.com' />");
win.showCenter();
}