var sel = 'b1';

  function menuroll(sec, v) {
    var obj;
    obj = document.getElementById(sec);
    if (sel!=sec) {
      obj.className = "button" + v;
    }
  }

  function menupick(sec) {
    var obj;
    obj = document.getElementById(sel);
    if (obj!=null) { obj.className = "button0"; }
    obj = document.getElementById(sec);
    obj.className = "button1";
    sel = sec;
  }
  function menucart(sec) {
    var obj;
    obj = document.getElementById(sel);
    if (obj!=null) { obj.className = "button0"; }
    obj = document.getElementById(sec);
    obj.className = "button1";
    sel = sec;
	document.cartform.submit();
  }