if (document.images)
   {
     homeon= new Image(195,35);
     homeon.src="images/button_on.jpg";  

     homeoff= new Image(195,35);
     homeoff.src="images/button_off.jpg";
   
     missionon= new Image(195,35);
     missionon.src="images/button_on.jpg";  

     missionoff= new Image(195,35);
     missionoff.src="images/button_off.jpg";
  
  	 /*staffon= new Image(195,35);
     staffon.src="images/button_on.jpg";  

     staffoff= new Image(195,35);
     staffoff.src="images/button_off.jpg";*/
  
     /*storeon= new Image(195,35);
     storeon.src="images/button_on.jpg";  

     storeoff= new Image(195,35);
     storeoff.src="images/button_off.jpg";*/
  
     fantailon= new Image(195,35);
     fantailon.src="images/button_on.jpg";  

     fantailoff= new Image(195,35);
     fantailoff.src="images/button_off.jpg";
  
     redcrosson= new Image(195,35);
     redcrosson.src="images/button_on.jpg";  

     redcrossoff= new Image(195,35);
     redcrossoff.src="images/button_off.jpg";
	 
	 contacton= new Image(195,35);
     contacton.src="images/button_on.jpg";  

     contactoff= new Image(195,35);
     contactoff.src="images/button_off.jpg";
   }

function lightup(imgName)
 {
   if (document.images)
    {
      imgOn=eval(imgName + "on.src");
      document[imgName].src= imgOn;
    }
 }

function turnoff(imgName)
 {
   if (document.images)
    {
      imgOff=eval(imgName + "off.src");
      document[imgName].src= imgOff;
    }
 }