<SCRIPT LANGUAGE="JavaScript">
var visibleVar="null";
function init(){
if (navigator.appName == "Netscape") {
layerStyleRef="layer.";
layerRef="document.layers";
styleSwitch="";
visibleVar="show";
}else{
layerStyleRef="layer.style.";
layerRef="document.all";
styleSwitch=".style";
visibleVar="visible";
}
}
function showHideLayerSwitch(layerName){
if (eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility == visibleVar')){
hideLayer(layerName);
}else{
showLayer(layerName);
}
}
function showLayer(layerName){
eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="visible"');
}
function hideLayer(layerName){
eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="hidden"');
}
function showLayer1(layerName){
if (eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility == visibleVar')){
showLayer(layerName);
}
}
function hideLayer1(layerName){
if (eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility == visibleVar')){
hideLayer(layerName);
}
}

</SCRIPT>