var browserName = navigator.appName;
var browserNum = parseInt(navigator.appVersion);
var layerRef
var endLayerRef
var styleRef
var browser
		
if (browserName == "Netscape")
{
  if (browserNum < 5)
  {
	// Netscape 4.x
	layerRef = "document.layers['";
	endLayerRef = "']";
	styleRef = "";
      browser = "N4";
  } 
  else 
  {
	// Netscape 6
	layerRef = "document.getElementById('";
	endLayerRef = "')";
	styleRef = ".style";
      browser = "N6";
  }
}
else
{
	// Internet Explorer
	layerRef = "document.all['";
	endLayerRef = "']";
	styleRef = ".style";
      browser = "IE";
}