<!-- Begin
var ie4 = (document.all) ? true : false;
var ns4 = (document.layers) ? true : false;
var ns6 = (document.getElementById && !document.all) ? true : false;
function hidelayer(lay) {

//if (ie4) {document.all[lay].style.visibility = "hidden";}
if (ie4) {document.getElementById([lay]).style.display='none'};
if (ns4) {document.layers[lay].visibility = "hide";}
if (ns6) {document.getElementById([lay]).style.display = "none";}
}

function showlayer(lay) {

//if (ie4) {document.all[lay].style.visibility = "visible";}
if (ie4) {document.getElementById([lay]).style.display='block'};
if (ns4) {document.layers[lay].visibility = "show";}
if (ns6) {document.getElementById([lay]).style.display = "block";}
}