var ns = (document.layers)? true:false
var ie = (document.all)? true:false
if (ie) {
  var docPointer = this.document.all
  var styleRef = ".style.";
} else if (ns) {
  var docPointer = this.document.layers;
  var styleRef = ".";
}
var homeoff = new Image();
homeoff.src = "images/footerhome.gif";
var homeon = new Image();
homeon.src = "images/footerhomeon.gif";
var contactusoff = new Image();
contactusoff.src = "images/footercontactus.gif";
var contactuson = new Image();
contactuson.src = "images/footercontactuson.gif";
var searchoff = new Image();
searchoff.src = "images/footersearch.gif";
var searchon = new Image();
searchon.src = "images/footersearchon.gif";
var sitemapoff = new Image();
sitemapoff.src = "images/footersitemap.gif";
var sitemapon = new Image();
sitemapon.src = "images/footersitemapon.gif";

function showId(id) {
  if (ie) {
    eval(id + ".style.visibility='visible'");
  } else if (ns) {
    // disabled
  }
  document[id + "img"].src = eval(id + "on.src");
}

function hideId(id) {
  if (ie) {
    eval(id + ".style.visibility='hidden'");
  } else if (ns) {
    // disabled
  }
  document[id + "img"].src = eval(id + "off.src");
}
  
function hideObject(obj) {
  if (ns) obj.visibility = "hide"
  else if (ie) obj.visibility = "hidden"
}

function showObject(obj) {
  if (ns) obj.visibility = "show"
  else if (ie) obj.visibility = "visible"
}