// JavaScript Document
function xGetElementById(e) {
  if(typeof(e)=='string') {
    if(document.getElementById) e=document.getElementById(e);
    else if(document.all) e=document.all[e];
    else e=null;
  }
  return e;
}

function term_but() {
  chkbox = xGetElementById('smb_chk');
  chkbut = xGetElementById('smb_but');
  if (chkbox.checked == true) {
    chkbut.disabled = false;
  } else {
    chkbut.disabled = true;
  }
}

function term_chk() {
  chkbox = xGetElementById('smb_chk');
  if (chkbox.checked == true) {
    return true;
  } else {
    return false;
  }
}