function act(bout){
      var imgname = parent.menu.document.images[bout].name;
      var imgmenu = ('images/imgact/' + imgname);
      parent.menu.document.images[bout].src=imgmenu;
}

function inact(bout){
      var imgname = parent.menu.document.images[bout].name;
      var imgmenu = ('images/imginact/' + imgname);
      parent.menu.document.images[bout].src=imgmenu;
}