function off (name) {
  document[name].src='/templates/default/images/'+name+'.gif';
}
function on (name) {
  document[name].src='/templates/default/images/'+name+'_.gif';
}

function off1 (name,file) {
  document[name].src='/templates/default/images/'+file+'.gif';
}
function on1 (name,file) {
  document[name].src='/templates/default/images/'+file+'_.gif';
}