function go(o) {
	if (document.getElementById) {
		return document.getElementById(o);
	} else if (document.all) {
		return document.all[o];
	} else if (document.layers) {
		return document.layers[o];
	} else {
		return null;
	}
}

function t(s) {
	return String(s).replace(/^\s+/g, "").replace(/\s+$/g, "");
}

function kh(e, c){
var key = e.keyCode || e.which;
  if (key == c){
    return true;
  } else {
    return false;
  }
}

function to(o) {
  o = go(o);
  if (o.style.display == "") {
    o.style.display = "none";
  } else {
    o.style.display = "";
  }
}