//<!--
  if (navigator.appName == "Netscape") {
	  layerRef="document.layers";
  	  styleSwitch="";
      } else {
    	  layerRef="document.all";
    	  styleSwitch=".style";
      }

	  HomeOn = new Image();
	  HomeOn.src = "images/button-home-on.gif"
	  HomeOff = new Image();
	  HomeOff.src = "images/button-home-off.gif"

	  AboutOn = new Image();
	  AboutOn.src = "images/button-about-on.gif"
	  AboutOff = new Image();
	  AboutOff.src = "images/button-about-off.gif"

	  ServiceOn = new Image();
	  ServiceOn.src = "images/button-services-on.gif"
	  ServiceOff = new Image();
	  ServiceOff.src = "images/button-services-off.gif"

	  CapOn = new Image();
	  CapOn.src = "images/button-capabilities-on.gif"
	  CapOff = new Image();
	  CapOff.src = "images/button-capabilities-off.gif"

	  ExpOn = new Image();
	  ExpOn.src = "images/button-experience-on.gif"
	  ExpOff = new Image();
	  ExpOff.src = "images/button-experience-off.gif"

	  NewsOn = new Image();
	  NewsOn.src = "images/button-news-on.gif"
	  NewsOff = new Image();
	  NewsOff.src = "images/button-news-off.gif"

	  ContactOn = new Image();
	  ContactOn.src = "images/button-contact-on.gif"
	  ContactOff = new Image();
	  ContactOff.src = "images/button-contact-off.gif"

  function ChangeImage (ImageName,FileName) 
  {
          document[ImageName].src = window[FileName].src;
  }

  function showLayer(layerName) {
 	  eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="visible"');
  }
    	
  function hideLayer(layerName) {
	  eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="hidden"');
  }
// -->