function clearMe(formfield){
  comment='This is to clear INPUT default value'
  if (formfield.defaultValue==formfield.value)
    formfield.value = ""
}
 
function removeOption(formfield) {
  comment='this remove default value in SELECT, if value is ""'
  if (formfield.options[formfield.selectedIndex].value=="")
    formfield.remove(formfield.selectedIndex)
}

function ToggleAllBackups() {
  dml=document.backup_list;
  for (var i=0;i<dml.elements.length;i++) {
    var e=dml.elements[i];
    if (e.type=='checkbox') {
      e.checked=!e.checked;
    }
  }
}