browser=navigator.appName;
browserNum=parseInt(navigator.appVersion);
oldLayerName="";
N4=false;
N6=false;
IE=false;

if((browser=="Netscape") && (browserNum < 5))
   {
   //Netscape 4.x
   layerRef="document.layers['";
   endLayerRef="']";
   styleRef="";
   N4=true;
}
else if ((browser=="Netscape") && (browserNum >= 5))
{
   //Netscape 6
   layerRef="document.getElementById('";
   endLayerRef="')";
   styleRef=".style";
   N6=true;
}
else
{
   //Internet Explorer
   layerRef="document.all['";
   endLayerRef="']";
   styleRef=".style";
   IE=true;
}

function showLayer(layerName,num){
   setStatus("");
   eval(layerRef+oldLayerName+endLayerRef+styleRef+".visibility='hidden'");
   eval(layerRef+layerName+endLayerRef+styleRef+".visibility='visible'");
   oldLayerName=layerName;
   h=200;
   if(N4){
      num=eval(layerRef+layerName+endLayerRef+".clip.height");
      h=parseInt(eval(layerRef+layerName+endLayerRef+".top"));
   }
   else{
      num=eval(layerRef+layerName+endLayerRef+".offsetHeight");
      h=parseInt(eval(layerRef+layerName+endLayerRef+".offsetTop"));
   }
   h+=parseInt(num);
   if(h>560){
      h-=32;
      eval(layerRef+"bottomImage"+endLayerRef+styleRef+".top='"+h+"'");
   }
   else{
      eval(layerRef+"bottomImage"+endLayerRef+styleRef+".top='"+530+"'");
   }
}

function setStatus(str){
   window.status="";
}