var layerRef="";
 var styleSwitch="";
 var visibleVar="null";
 
function init(){
  if (navigator.appName == "Netscape") {
            layerStyleRef="layer.";
            layerRef="document.layers";
            styleSwitch="";
            displayVar="show";
  }else{
            layerStyleRef="layer.style.";
            layerRef="document.all";
            styleSwitch=".style";
            displayVar="visible";
        }
  }
  
function MouseOver() 
{if (navigator.appName == "Netscape") {return;}
else{
	window.event.srcElement.style.color = "red";
	window.event.srcElement.style.cursor = "hand";
}}

function MouseOut() 
{if (navigator.appName == "Netscape") {return;}
else{
	window.event.srcElement.style.color = "midnightblue";
	window.event.srcElement.style.cursor = "default";
}}

function showHideLayerSwitch(layerName){
   if (eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility == displayVar')){
         hideLayer(layerName);
   }else{
          showLayer(layerName);
        }
  }
function showLayer(layerName){
    eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="visible"');
        }
function hideLayer(layerName){
    eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="hidden"');
        }