function img_off(name) {
  document.images[name].src="image/on-off/"+name+"_off.gif";
}

function img_on(name) {
  document.images[name].src="image/on-off/"+name+"_on.gif";
}

function im_off(name) {
  document.images[name].src="images/"+name+"_off.gif";
}

function im_on(name) {
  document.images[name].src="images/"+name+"_on.gif";
}

function admin_login(name) {
if(document.all[name].style.display=='none') {
  document.all[name].style.display='';
  } else { document.all[name].style.display='none'; }
}