var ns4 = (document.layers)? true:false;
var ie4 = (document.all)? true:false;

function swapdiv() {
  var doc_id = document.getElementById;
  var first = (doc_id)? document.getElementById("footer_nologin") : document.all.footer_nologin;
  var second = (doc_id)? document.getElementById("footer_login") : document.all.footer_login;
  if (ns4) {
	first.display = "none";
	second.display = "block";
  } else {
	first.style.display = "none";
	second.style.display = "block";
  }
}

function swapback() {
  var doc_id = document.getElementById;
  var first = (doc_id)? document.getElementById("footer_nologin") : document.all.footer_nologin;
  var second = (doc_id)? document.getElementById("footer_login") : document.all.footer_login;
  if (ns4) {
	first.display = "block";
	second.display = "none";
  } else {
	first.style.display = "block";
	second.style.display = "none";
  }
}