if (document.images)
   {
     pic1on= new Image(63,21);
     pic1on.src="./images/hr_home_hover.jpg";  
     pic1off= new Image(63,21);
     pic1off.src="./images/hr_home.jpg";

     pic2on= new Image(100,25);
     pic2on.src="./images/hr_support_hover.jpg";  
     pic2off= new Image(100,25);
     pic2off.src="./images/hr_support.jpg";
	 
     pic3on= new Image(100,25);
     pic3on.src="./images/hr_contact_hover.jpg";  
     pic3off= new Image(100,25);
     pic3off.src="./images/hr_contact.jpg";
	 
     pic4on= new Image(100,25);
     pic4on.src="./images/hm_werking_hover.jpg";  
     pic4off= new Image(100,25);
     pic4off.src="./images/hm_werking.jpg";
	 
     pic5on= new Image(100,25);
     pic5on.src="./images/hm_voordelen_hover.jpg";  
     pic5off= new Image(100,25);
     pic5off.src="./images/hm_voordelen.jpg";

     pic6on= new Image(100,25);
     pic6on.src="./images/hm_beveiliging_hover.jpg";  
     pic6off= new Image(100,25);
     pic6off.src="./images/hm_beveiliging.jpg";
	 
     pic7on= new Image(100,25);
     pic7on.src="./images/hm_systeemeisen_hover.jpg";  
     pic7off= new Image(100,25);
     pic7off.src="./images/hm_systeemeisen.jpg";
	 
     pic8on= new Image(100,25);
     pic8on.src="./images/hm_tarieven_hover.jpg";  
     pic8off= new Image(100,25);
     pic8off.src="./images/hm_tarieven.jpg";
	 
     pic9on= new Image(100,25);
     pic9on.src="./images/hm_bestellen_hover.jpg";  
     pic9off= new Image(100,25);
     pic9off.src="./images/hm_bestellen.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;
    }
 }