<!--
var layer_names = new Array ("LAYER_0","LAYER_1","LAYER_2","LAYER_3","LAYER_4","LAYER_5","LAYER_6","LAYER_7");
function show_layer (layer)
{
   if (navigator.appName == 'Netscape' && document.layers != null)
   {
     document.layers[layer].visibility = 'show';
   }
   else if (document.all != null) //IE
   {
     document.all[layer].style.visibility = 'visible';
   }
   hide_other_layers (layer);
}
function hide_other_layers (layer)
{
  var layerArray;
  for (i=0; i<layer_names.length; i++)
  {
       if (layer_names[i] == layer)
 continue;
       var theObj;
       if (navigator.appName == "Netscape" && document.layers != null)
       {
 document.layers[layer_names[i]].visibility = "hide";
       }
       else if (document.all != null) //IE
       {
 document.all[layer_names[i]].style.visibility = "hidden";
       }
  }
}
//-->